AP Physics Kinematics

the unit of acceleration is

• (m/s²)

• jouls

• m

• s

When is an object under uniform acceleration?

• none of the following

• when the direction is straight

• when the velocity change is constant per unit time

• when the time is constant

Which of the following is/are true about acceleration

• Acceleration is defined as the rate of change of velocity

• Its SI unit is m/s2

• Negative acceleration is called retardation

• none of the following

Tags

NGSS.HS-PS2-1

Which of the following is an acceptable velocity measurement?

• 25 m/s North

• 25 m/s

• 25 m

• 25 m North

Tags

NGSS.MS-PS3-1

Is the change in position with respect to a reference point.

• Speed

• Force

• Motion

What two measurements are necessary for calculating speed?

• Mass and time

• Temperature and mass

• Mass and distance

• Distance and time

Tags

NGSS.MS-PS3-1

A measurement of how fast an object is moving

• Velocity

• Speed

• Vector

• Acceleration

Tags

NGSS.MS-PS3-1

Can be measured in seconds (s)

• Distance

• Time

• Speed

• Acceleration

What is the speed of an object that travels 20 meters in 4 seconds?

• 80 m/s

• 0.2 m/s

• 5 m/s

• 24 m/s

Tags

NGSS.MS-PS3-1

Speed is different from velocity because

• Velocity has a direction

• Speed uses Distance /Time

• Velocity doesn't include time

• Velocity doesn't include distance