Science One word answer.

What is the quantity which is measured by the area occupied below the velocity -time graph?

What does the path of an object look like when it is in uniform motion?

What does the odometer of an automobile measure?

Under what condition(s) is the magnitude of average velocity of an object equal to its average speed?

Which of the following is true for displacement?

1. It cannot be zero.
2. Its magnitude is greater than the distance travelled by the object.

An object has moved through a distance. Can it have zero displacement? If yes, support your answer with an example.

State which of the following situations are possible and give an example for each of these:
an object moving in a certain direction with an acceleration in the perpendicular direction.

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.

State which of the following situations are possible and give an example for each of these:
an object with a constant acceleration but with zero velocity.

Name the quantitity, the slope of whose graph gives:
Speed.

What does the slope of a distance-time graph indicate?

Is displacement a scalar quantity?

A body goes round the sun with constant speed in a circular orbit. Is the motion uniform or accelerated?

State whether distance is a scalar or a vector quantity.

What changes continuously in uniform circular motion?

What can you say about the motion of a body if its speed-time graph is a straight line parallel to the time axis?

What do the following measure in a car?

1. Speedometer. 
2. Odometer.

Write the formula for acceleration. Give the meaning of each symbol which occurs in it.

If the velocity-time graph of an object is parallel to X-axis, then what does it mean? Can it be parallel to Y-axis?

Change the speed of 6m/s into km/h.

The velocity of a body increases by 10m/s in every one second. What physical quantity does the body represent and what is its magnitude?

Define average speed.

Convert a speed of 54km/h into m/s.

Name the physical quantity whose SI unit is:

1. m/s
2. m/s²

What is the other name of negative acceleration?

What name is given to the speed in a specified direction?

Which of the two can be zero under certain conditions average speed of a moving body or average velocity of a moving body?

What type of motion is represented by the tip of the ‘seconds’ hand’ of a watch? Is it uniform or accelerated?

What is the acceleration of a body moving with uniform velocity?

Under what conditions can a body travel a certain distance and yet its resultant displacement be zero?

Give two examples of vector quantity.

In addition to speed, what else should we know to predict the position of a moving body?

Give one example of a motion where an object does not change its speed but its direction of motion changes continuously.

What conclusion can you draw about the velocity of a body from the displacement-time graph shown below:

What type of motion is exhibited by a freely falling body?

Name the type of motion in which a body has a constant speed but not constant velocity.

If the distance-time graph of a particle is parallel to time axis, then how much is the velocity of the particle?

State whether displacement is a scalar or a vector quantity.

Write the SI unit of the both distance and displacement.

Does the motion of second’s hand of a watch represent uniform velocity or uniform speed?

Name the physical quantity which gives us an idea of how slow or fast a body is moving.

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.

What remains constant in uniform circular motion?

If the acceleration of the particle is constant in magnitude but not in direction, then what type of path does the particle follow?

A car is moving along a straight road at a steady speed. It travels 150m in 5 seconds:
How long does it take to travel 240m?

Name the physical quantity obtained by dividing ‘Distance travelled’ by ‘Time taken’ to travel that distance.

The displacement of a moving object in a given interval of time is zero. Would the distance travelled by the object also be zero? Give reason for your answer.

Give one word which means the same as ‘moving with a negative acceleration’.

Give SI unit of angular velocity.