Kinematics

A speed time graph of an object is shown

• The object drops through a vacuum

• The object drops through air

• The object is being thrown downwards though vacuum

• The object is being thrown downwards through air

A truck accelerates from rest to 10ms^-1 in 5 s. What is the distance traveled at the and of 5 s?

• 5 m

• 10 m

• 25 m

• 50 m

Which of the following bests describes the velocity-time graph of an object shown?

• The object travels at constant acceleration

• The object travels at constant speed

• The object travels at constant velocity

• The object is stationary

Define acceleration.

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A ball takes 4 s to drop from the top of a building to reach the floor.Calculate the height of the building.

Take g=10 ms^-2

• 40 m

• 80 m

• 120 m

• 160 m

Which of the following bests describes the distance-time graph of an object?

• The object travels at constant speed of 2 ms^-1

• The object travels at constant acceleration of 2 ms^-2

• The object travels at constant velocity of 2 ms^-1

• The object is not moving

The area under a distance - time graph gives us the ___________

• Displacement

• Speed

• Velocity

• Acceleration

• None of the above

Terminal velocity is the maximum velocity attained by an object as it falls through air when the weight is __________ to the air resistance

Define velocity

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Select all the quantities which are scalar quantities.

• Force

• Speed

• Displacement

• Time

• Weight