Physics - Section 3.3 & 3.4 Quiz review

The picture of the position vs. time graph shows an object that is...

• accelerating/speeding up

• moving at a constant speed

• not moving

• decelerating/slowing down.

Which graph shows the object standing still?

• A

• B

• C

• D

What is this graph showing?

• Constant Speed
• Acceleration (speeding up)
• Deceleration (slowing down)
• No motion

Tags

CCSS.8.EE.B.5

What is this graph showing?

• Constant Speed

• Acceleration (speeding up)

• Deceleration (slowing down)

• No motion

How many times does this object STOP moving?

• None
• Once
• Twice
• Three times

Tags

NGSS.HS-PS2-1

What does this graph represent?

• Constant Speed
• Acceleration
• Not moving

Tags

CCSS.8.EE.B.5

What is happening at C?

• Stationary
• Accelerating
• Fast steady speed; moving away from the starting position
• Slower steady speed; moving away from the starting position

Tags

CCSS.8.EE.B.5

What does this graph represent?

• Constant speed
• Acceleration
• Not moving

Tags

CCSS.8.EE.B.5

An object free falls for 3.5 seconds. How far does it fall?

• 120 m

• 17 m

• 60. m

• 34. m

A car is driving with a velocity of 20m/s when the driver sees a red light in the distance. The driver begins to push the breaks and starts accelerating at a rate of -2m/s². It takes the driver 10s to come to a complete stop. What is the driver's equation of motion?

• x_f = (-2 m/s)t + (-2 m/s²)t²

• x_f = (20 m/s)t + (-1 m/s²)t²

• x_f = (-2 m/s²)t + (-20 m/s)t²

• not enough information