Physics Acceleration Review

Constant speed is represented by a ___________ segment on the D-T graph

• curved

• straight

• jagged

• round

A velocity-time (V-T) graph shows an object’s velocity as a function of ____________

• velocity

• distance

• speed

• time

A horizontal line on the Velocity vs Time graph means __________ velocity

• constant

• simple

• negative

• positive

A ________ quantity is any quantity in physics that has BOTH MAGNITUDE and DIRECTION

• Vector

• friendly

• scalar

• angry

1. An object is in ____________if it changes position relative to a reference point.

• standing still

• motion

• not moving

• sleeping

1. Benjamin is running on a circular track. He maintains a constant speed but his velocity changes. This is because velocity depends on _________ as well as speed. So, even if Benjamin's speed remains constant, his velocity can change.

• vibration

• tone

• measurement

• direction

1. Evelyn is driving her car. She notices that her car's acceleration can result from a change in speed, a change in direction, or changes in  ________. 

• both

• velocity

• speed

• direction

The curved line on this distance-versus-time graph tells you that the object is ____________. 

• decelerating

• stopping

• accelerating

• speeding

1. Nora is learning to drive. She manages to increase the car's speed from 0 m/s to 30 m/s in 10 seconds. What is the acceleration of the car?

Final speed = 30 m/s

Initial speed = 0 m/s

Time = 10 s

Remember (final speed – initial speed) ÷ time is acceleration.

• 10 m/s

• 10 m/s^2

• 3 m/s^2

• 30 m/s

Abigail, David, and Samuel are planning a trip to Cape Canaveral, Florida. They estimate that the journey will take them 10 hours. The distance from their home to Cape Canaveral is 816 km. Can you help them calculate the average speed they need to maintain for their trip? Use the formula s=d/t.

• 81.6 m/s^2

• 816 m/s

• 8.16 m/s

• .816 m/s