The velocity of a body can change:
- AIf its acceleration is zero.
- ✓If its acceleration is non-zero.
- CBoth $A \& B$
- DNone of the above.
Answer: B.
View full solution →Question types
Motion question types
834 questions across 9 question groups — pick any mix to generate a Science paper with step-by-step answer keys.
834
Questions
9
Question groups
5
Question types
01
M.C.Q. [1 M]
346 Q→02Assertion (A) & Reason (B) MCQ
12 Q→03true or false
10 Q→04Fill in the blank
32 Q→05Do as directed; [1 M ]
126 Q→06Que-Ans (Each of 2 Mark )
170 Q→07Que-Ans (Each of 3 Mark )
88 Q→08Que-Ans (Each of 5 Mark )
48 Q→09Case study ( 4 Marks )
2 Q→Sample Questions
Motion questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
The SI unit of retardation is $......$ ?
- ✓$\frac{\text{m}}{\text{s}}^{2}$
- B$\frac{\text{m}}{\text{s}}$
- C$\text{m}^2$
- D$\text{s}^2$
Answer: A.
View full solution →Which of the following could not be a unit of acceleration?
- A$\mathrm{km} / \mathrm{s}^2$
- B$\mathrm{cms}^{-2}$
- ✓$\mathrm {km/s}$
- D$\mathrm{m} / \mathrm{s}^2$
Answer: C.
View full solution →Which of the following statements is correct for a particle travelling with a constant speed:
- AIts position remains constant as time passes.
- BIt covers equal distances in unequal time intervals.
- ✓Its acceleration is zero.
- DIt does not change its direction of motion.
Answer: C.
View full solution →When two bodies moves uniformly towards each her then they cross each other at the speed of $10\ m/s$. If both the bodies move in the same direction, then they cross each other at the speed of 6m/s. The speed of both bodies are:
- ✓$8\ m/s, 2\ m/s$
- B$8\ m/s, 4\ m/s$
- C$6\ m/s, 2\ m/s$
- D$6\ m/s, 4\ m/s$
Answer: A.
View full solution →In the following Questions, the Assertion and Reason have been put forward. Read the statements carefully and choose the correct alternative from the following:
Assertion: Equations of motion can when the acceleration is $a = 2t$ where t seconds.
Reason: The slope of a $v-t$ graph with $60^o$ inclination is greater than $30^o$ inclination.
Assertion: Equations of motion can when the acceleration is $a = 2t$ where t seconds.
Reason: The slope of a $v-t$ graph with $60^o$ inclination is greater than $30^o$ inclination.
- ✓Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion.
- BThe Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.
- CAssertion is true but the Reason is false.
- DThe statement of the Assertion is false but the Reason is true.
Answer: A.
View full solution →In the following questions, a statement of Assertion is given by the corresponding statement of Reason. Of the statements, mark the correct answer as:
Assertion: A body performing uniform circular motion with constant speed may have acceleration.
Reason: When speed of a body remains constant, then its acceleration is always zero.
Assertion: A body performing uniform circular motion with constant speed may have acceleration.
Reason: When speed of a body remains constant, then its acceleration is always zero.
- AIf both Assertion and Reason are true and Reason is the correct explanation of Assertion.
- BIf both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
- ✓If Assertion is true, but Reason is false.
- DIf Assertion is false, but Reason is true.
Answer: C.
View full solution →In the following Questions, the Assertion and Reason have been put forward. Read the statements carefully and choose the correct alternative from the following:
Assertion: The slope of distance time graph gives acceleration of the body.
Reason: Greater the slope of distance time graph, more is the speed of the body.
Assertion: The slope of distance time graph gives acceleration of the body.
Reason: Greater the slope of distance time graph, more is the speed of the body.
- ✓Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion.
- BThe Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.
- CAssertion is true but the Reason is false.
- DThe statement of the Assertion is false but the Reason is true.
Answer: A.
View full solution →In the following questions, a statement of Assertion is given by the corresponding statement of Reason. Of the statements, mark the correct answer as:
Assertion: Acceleration of a body can be calculated from velocity-time graph.
Reason: Area of velocity-time graph gives distance travelled by the body.
Assertion: Acceleration of a body can be calculated from velocity-time graph.
Reason: Area of velocity-time graph gives distance travelled by the body.
- AIf both Assertion and Reason are true and Reason is the correct explanation of Assertion.
- ✓If both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
- CIf Assertion is true, but Reason is false.
- DIf Assertion is false, but Reason is true.
Answer: B.
View full solution →In the following questions, a statement of Assertion is given by the corresponding statement of Reason. Of the statements, mark the correct answer as:
Assertion: Distance travelled by a body may be positive, negative or zero.
Reason: Shortest distance travelled by the body between two points is called distance.
Assertion: Distance travelled by a body may be positive, negative or zero.
Reason: Shortest distance travelled by the body between two points is called distance.
- AIf both Assertion and Reason are true and Reason is the correct explanation of Assertion.
- BIf both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
- CIf Assertion is true, but Reason is false.
- ✓If Assertion is false, but Reason is true.
Answer: D.
View full solution →On a straight line path, speed of a body is equal to its velocity. [True/ False]
There is no situation in the universe when velocity is zero but acceleration is non-zero. [True/ False]
We calculate average speed when the body is in non-uniform motion. [True/ False]
Displacement can be equal to, less than or greater than distance travelled. [True/ False]
Velocity of a body cannot be greater in magnitude than its speed. [True/ False]
Fill in the blanks. _____ is the term used for negative acceleration.
Fill in the blanks with suitable words:
A motorcycle has a steady _________ of $3m/s^2$. This means that every __________ its _________ increases by __________.
View full solution →A motorcycle has a steady _________ of $3m/s^2$. This means that every __________ its _________ increases by __________.
Fill in the following blanks with suitable words: If a body moves with uniform velocity, its acceleration is ________.
Fill in the blanks. A bus starting from rest attains a velocity of $54km/h$ in $60s$, its acceleration is _____.
View full solution →Fill in the following blanks with suitable words: The slope of a speed-time graph of a moving body gives its ________.
A satellite goes round the earth in a circular orbit with constant speed. Is the motion uniform or accelerated? 
This photograph shows a man-made 'communication satellite' going round the earth in a circular orbit (or circular path). We can see the dish antennae and solar panels (made of solar cells) clearly in this photograph. 
This photograph shows a watch. The tip of seconds 'hand of this watch moves rapidly on the dial of the watch. The tips of minutes' hand and hours' also move on the dial but they move slowly.
This photograph shows a man-made 'communication satellite' going round the earth in a circular orbit (or circular path). We can see the dish antennae and solar panels (made of solar cells) clearly in this photograph. This photograph shows a watch. The tip of seconds 'hand of this watch moves rapidly on the dial of the watch. The tips of minutes' hand and hours' also move on the dial but they move slowly.Write the formula for acceleration. Give the meaning of each symbol which occurs in it.
State which of the following situations are possible and give an example for each of these: an object moving with an acceleration but with uniform speed.
Change the speed of $6\ m/s$ into $km/h.$
View full solution →State whether displacement is a scalar or a vector quantity.
A trolley, while going down an inclined plane, has an acceleration of $2cm s^{-2}$. What will be its velocity $3$ s after the start?
View full solution →A bus decreases its speed from $80\ km/h^{−1}$ to $60km/h^{−1}$ in $5s$. Find the acceleration of the bus.
View full solution →An object is moving along a straight line with uniform acceleration. The following table gives the velocity of the object at various instants of time:
Plot the graph. From the graph,
View full solution →|
Time (in sec.):
|
$0$
|
$1$
|
$2$
|
$3$
|
$4$
|
$5$
|
$6$
|
|
Velocity (in m/s):
|
$2$
|
$4$
|
$6$
|
$8$
|
$10$
|
$12$
|
$14$
|
- Find the velocity of the object at the end of $2.5$ seconds.
- Calculate the acceleration.
- Calculate the distance covered in the last $4$ seconds.
A car accelerates from $6ms^{-1}$ to $16ms^{-1}$ in $10\sec$. Calculate: The distance covered by the car in that time.
View full solution →How will you show that the slope of the displacement-time graph gives the velocity of the body?
Two stones are thrown vertically upwards simultaneously with their initial velocities $u_1$ and $u_2$ respectively. Prove that the heights reached by them would be in the ratio of $\text{u}_1^2:\text{u}_2^1$ (Assume upward acceleration is –g and downward acceleration to be +g).
View full solution →Draw a velocity versus time graph of a stone thrown vertically upwards and then coming downwards after attaining the maximum height.
Abdul, while driving to school, computes the average speed for his trip to be $20km\ h^{−1}$. On his return trip along the same route, there is less traffic and the average speed is $30km\ h^{−1}$. What is the average speed for Abdul’s trip?
View full solution →A motorcyclist drives from place $A$ to $B$ with a uniform speed of $30km h^{-1}$ and returns from place $B$ to $A$ with a uniform speed of $20km h^{-1}$. Find his average speed.
View full solution →What is meant by the term ‘acceleration’ State the $SI$ unit of acceleration.
View full solution →A girl walks along a straight path to drop a letter in the letterbox and comes back to her initial position. Her displacement–time graph is shown in Plot a velocity–time graph for the same.
How will the equations of motion for an object moving with a uniform velocity change$?$
View full solution →The graph given alogside shows the positions of a body at different times. Calculate the speed of the body as it moves from:
View full solution →
- $A$ to $B.$
- $B$ to $C.$
- $C$ to $D.$
The figure shows an $x-t$ graph of a particle moving along a straight line. What is the sign of the acceleration during the intervals $OA, AB, BC,$ and $CD?$
View full solution →Using following data, draw time-displacement graph for a moving object:
Use this graph to find average velocity for first $4s,$ for next $4s$ and for last $6s.$
View full solution →|
Time $(s)$
|
$0$
|
$2$
|
$4$
|
$6$
|
$8$
|
$10$
|
$12$
|
$14$
|
$16$
|
|
Displacement $(m)$
|
$0$
|
$2$
|
$4$
|
$4$
|
$4$
|
$6$
|
$4$
|
$2$
|
$0$
|
Instruction: The table given below shows distance (in cm) travelled by the bodies $A, B$ and $C$. Read this data carefully and answer the questions which follow. Distance (in cm) covered by different bodies:
View full solution →|
Time
|
Body A
|
Body B
|
Body C
|
|
$1$st second
|
$20$
|
$20$
|
$20$
|
|
$2$nd second
|
$20$
|
$36$
|
$60$
|
|
$3$rd second
|
$20$
|
$24$
|
$100$
|
|
$4$th second
|
$20$
|
$30$
|
$140$
|
|
$5$th second
|
$20$
|
$48$
|
$180$
|
- Which of the bodies is moving with:
- Constant speed?
- Constant acceleration?
- Which of the bodies covers:
- Maximum distance in $3$rd second?
- Minimum distance in $3$rd second?
- Which of the bodies is moving with non-uniform acceleration?
Instruction: The table given below shows distance (in cm) travelled by the bodies A, B and C. Read this data carefully and answer the questions which follow. Distance (in cm) covered by different bodies:
Time | Body A | Body B | Body C |
1st second | 20 | 20 | 20 |
2nd second | 20 | 36 | 60 |
3rd second | 20 | 24 | 100 |
4th second | 20 | 30 | 140 |
5th second | 20 | 48 | 180 |
- Which of the bodies is moving with:
- Constant speed?
- Constant acceleration?
- Which of the bodies covers:
- Maximum distance in 3rd second?
- Minimum distance in 3rd second?
- Which of the bodies is moving with non-uniform acceleration?
Generate a Motion paper free
Pick question groups from the list above, set marks and difficulty, and export a branded PDF with step-by-step answer keys. First 3 chapters free — no signup.