Motion - First Group of Questions

True or false: a car that is going straight and NOT changing speed is accelerating.

• True

• False

What is acceleration? describe three ways that an object can accelerate.

• Speed up

• Slow down

• Change direction

• Maintain a constant speed and the same direction

True or false: an object has to change speed or direction in order to accelerate.

• True

• False

Why is slowing down considered acceleration?

• Because the speed is fast

• Because the speed is slow

• Because the speed is changing

• Because the speed isn’t changing

The force that is “center seeking” is called the ______ force.

• Centripetal

• Centrifugal

An object traveling in a circle is constantly changing direction. Therefore, the object is.

• Accelerating

• Jumping

• Gravitating

• Forcing

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Velocity includes ______ and ______ .

• Speed , direction

• Speed, time

• Direction, time

Velocity is considered to be…

• Vector

• Scaler

Speed is considered a…

• Vector

• Scalar

Which of the following is the formula for calculating momentum?

• Momentum = Mass x acceleration

• Momentum = Mass x velocity

• Momentum = Mass x gravity