Kinematics Revision

Total distance an object travels with direction.

• Displacement

• Distance

• Path

• Velocity

What is the formula to calculate the speed of a car?

• S = time/distance

• S = distance/time

• S = distance x time

• S = time x distance

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NGSS.MS-PS3-1

In what way is velocity different from speed ?

• Velocity is measured in SI unit.

• Velocity is measured in a specified direction.

• Velocity means the distance divided by time.

• Velocity is measured horizontally. 

When an object starts from rest, what is its original velocity?

• Depends on the problem

• 0

• Always positive

• Always negative

What is the unit of acceleration?

• g/cm³

• m/s

• m/s²

• N/m

The three balls shown in the diagram were dropped from a bench. Assume the air resistance acting on the balls is negligible. Which balls had the same acceleration? (Hint: under same gravity)

• Aluminum, lead and wood

• Aluminium and lead

• Aluminium and wood

• Lead and wood

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The table shows the speed of four cars, measured at the start of and at the end of one minute. Which car has the greatest acceleration?

• A

• B

• C

• D

A girl on a bicycle rides down a hill without pedalling. What happens to the bicycle at X?

• It stops.

• It slows down.

• It moves at a constant speed.

• It continues to accelerate.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-2

NGSS.MS-PS3-5

Which speed-time graph is for an object at rest?

• A

• B

• C

• D

The diagram shows the speed-time for an object moving at constant speed. What is the distance travelled by the object in 3 seconds?

• 1.5 m

• 2.0 m

• 3.0 m

• 6.0 m

Tags

NGSS.MS-PS3-1