Kinematics

Total distance covered in total time taken is termed as

• Instantaneous speed

• Average speed

• Uniform speed

• Variable speed

Velocity is

• Distance covered in unit time

• Displacement in unit time

• Time taken per unit distance

• Time taken per unit displacement

Distance in specified direction is termed as

• directional distance

• Uni directional distance

• Displacement

• Unidirectional displacement

The speed of the truck is 40 m s^-1, after 10 seconds its speed decreases to 20 m s^-1, its acceleration is

• -1m/s²

• -2m/s²

• -4m/s²

• -5m/s²

Tags

NGSS.HS-PS2-1

A car stops and then starts accelerating uniformly at rate of 3 m s^-2, speed of car after 20 seconds is

• 40m/s²

• 60m/s²

• 100m/s²

• 30m/s²

Tags

NGSS.HS-PS2-1

What does a horizontal line on a speed-time graph indicate?

• Constant distance

• Constant speed

• Constant acceleration

Tags

NGSS.MS-PS3-1

What does the speed-time graph below represent the object as?

• Travelling at constant speed, then decelerating.

• Accelerating, then decelerating

• Accelerating, then travelling at constant speed.

Tags

NGSS.MS-PS3-1

What is the area under a speed-time graph equal to?

• Acceleration

• Distance travelled

• Instantaneous speed

Tags

NGSS.MS-PS3-1

Using the graph, calculate the total distance travelled by the motor cycle.

• 1000m

• 1125m

• 1500m

Tags

NGSS.MS-PS3-1

In the velocity time graph above, what does the section of the graph below the time axis refers to?

• Object travelling downwards

• Object travelling in opposite direction to initial motion

• Object travelling upwards

Tags

NGSS.MS-PS3-1