Final Review

A ball started at 0m, moved to +3 meters, and then went back to -4 meters. What is the total distance the ball moved?

• 0m

• 4m

• 3m

• 10m

A ball started at 0m, moved to +3 meters, and then went back to -4 meters. What is the total displacement of the ball?

• -7m

• -4m

• 4m

• 7m

Velocity and speed are different because velocity must include

• A. direction

• B. a scale

• C. distance

• D. velocity and speed are the same

A car is starting from rest at a stoplight and speeds up to 55 miles/hour. Which are the correct signs for velocity and acceleration?

• +v +a

• -v +a

• -v -a

• +v -a

Tags

NGSS.HS-PS2-1

A car starts from rest and drives backwards until it reaches a velocity of -15.0 miles/hour. Which are the correct signs for velocity and acceleration?

• +v +a

• -v +a

• -v -a

• +v -a

Tags

NGSS.MS-PS3-5

Which best describes the motion of the car in section A?

• constant negative velocity

• constant positive velocity

• velocity = 0

• positive velocity with positive acceleration

Tags

NGSS.MS-PS3-1

The speed of the car in section A is _____

• 1.25 m/s

• 1.33 m/s

• 0.75 m/s

• 0.66 m/s

Tags

NGSS.MS-PS3-1

The total displacement of the car during the entire 160.0 second time interval is _____

• 30.0 m

• 10.0 m

• 20.0 m

• -20.0 m

Tags

NGSS.MS-PS3-1

A velocity vs time graph of a car on a flat and straight surface is shown above. At which exact point in time is the car not moving?

• 3s

• 5s

• 7s

• 12s

Tags

NGSS.MS-PS3-1

An object with a mass of 3.0 kg accelerates 2.0 m/s² when an unknown force is applied to it. What is the amount of the force?

• 2N

• 4N

• 6N

• 8N

Tags

NGSS.MS-PS2-2