PHYSICS [1 Mark Question Answer]

A stone is dropped from a certain height. Is its motion uniform or non-uniform?

What does the slope of speed-time graph indicate?

Out of energy and acceleration, which one is a vector?

When a body said to have a uniform velocity?

An object covers a distance of S meters in t seconds as follows :

S (meters)	0	8	20	20	16	10	0
t (Seconds)	80	2	5	10	12	15	10

Plot a graph, taking t on X-axis and S on Y-axis. Determine the velocity of the object at time
(i) 6 s, and
(ii) 14 s.

The table below shows the distance travelled by two vehicles A and B during each second :

Time (s)	0	1	2	3	4	5	6	7
Distance travelled by A (m)	0	20	80	180	240	300	360	420
Distance travelled by B (m)	0	10	40	90	160	250	360	490

Give the value of the velocity at which they are meeting

The table below shows the distance travelled by two vehicles A and B during each second:

Time (s)	0	1	2	3	4	5	6	7
Distance travelled by A (m)	0	20	80	180	240	300	360	420
Distance travelled by B (m)	0	10	40	90	160	250	360	490

At what time do A and B meet?Which vehicle is moving with a constant acceleration?

The table below shows the distance travelled by two vehicles A and B during each second :

Time (s)	0	1	2	3	4	5	6	7
Distance travelled by A (m)	0	20	80	180	240	300	360	420
Distance travelled by B (m)	0	10	40	90	160	250	360	490

Which vehicle is moving with a constant acceleration?

The table below shows the distance travelled by two vehicles A and B during each second:

Time (s)	0	1	2	3	4	5	6	7
Distance travelled by A (m)	0	20	80	180	240	300	360	420
Distance travelled by B (m)	0	10	40	90	160	250	360	490

Which vehicle is moving with uniform velocity?

How many types of rectilinear motion are there?

Define angular velocity

Name the physical quantity associated with the rate of change of displacement with time.

What does the slope of velocity-time graph represent?

Write the SI unit of retardation.

What happens to the stepwise increasing speed-time graph when the size of each step is made very small?

A body moves along a circular path of radius r. When it completes three complete rounds, what is the ratio of distance covered to its displacement?

A particle moves along a circular path. How many times does it change its direction in two complete rounds?

Is the following statement correct? If not, modify it suitably to make it correct. "The earth moves round the sun with uniform velocity".

During circular motion, which physical quantity of the body :
Changes continuously

During circular motion, which physical quantity of the body:
Remains constant

What is the relation between linear velocity and linear speed?

Write two examples of vectors.

Why does the velocity of a stone thrown vertically upwards decreases?

What is the velocity of a stone thrown vertically upwards at its maximum height?

Is the average speed during different time intervals for a uniform motion the same or different?

Is it possible for an accelerating body to have constant speed?

What can you say about the nature of motion of a body of its displacement-time graph is :
A straight line inclined to the time axis with an acute angle?

What can you say about the nature of motion of a body of its displacement-time graph is:
A straight line parallel to line axis?

State if the following situation is possible:
A body moving with a constant velocity in an accelerated motion.

State if the following situation is possible:
A body moving horizontally with an acceleration in vertical direction.

State if the following situation is possible:
A body moving with constant acceleration but with Zero velocity.

The distance covered by a body is directly proportional to the square of the time elapsed. What can you say about its acceleration?

Two cars are moving with speeds of 40 km/hr due North and 40 km/hr due South respectively. Do they have the same velocity?

What are the SI units of velocity?

What can you conclude if the speed-time graph of a body is a straight line sloping upwards and not passing through the origin?

Is distance covered during nth second more than the distance covered in n seconds?

Can a body have negative speed?

Do speed and average speed of a body have the same meaning?

The graph of one quantity versus another result in a straight line. How are the quantities related to each other?

Name the physical quantity which is equal to the area under speed-time graph.

Write the SI unit of acceleration and retardation.

Write the SI units of speed and average speed.

What are the uses of equations of motion?

How many variables are present in each equation of motion?