Science 8 Final Review: Physical Science

The unit speed is measured in is

• m/s
• ft/min
• m/hr
• m/s^2

Tags

NGSS.MS-PS3-1

Speed is equal to the distance divided by

• position
• time
• height
• motion

Tags

NGSS.MS-PS3-1

The change of position over time is called

• position
• motion
• speed
• location

Tags

NGSS.MS-PS2-2

A location to which you can compare other locations is called

• reference point
• motion
• location
• position

Carlos lives 100 meters from his friend's house. What is his average speed if he reaches his friends house in 50 seconds?
Distance= 100 m
time = 50 seconds

• 1 m/s
• 2 m/s
• 3 m/s
• 4 m/s

A soccer ball is kicked from 40 meters out. It takes 5 seconds to reach the goal. What speed was the ball traveling?
d= 40 m
t= 5 s

• 6 m/s
• 7 m/s
• 8 m/s
• 9 m/s

How do you know the car moved in this picture?

• I saw it move

• It changed positions compared to the tree (reference point)

• The car is in a different place

It is the product of mass and velocity.

• Speed

• Motion

• Momentum

• Force

What are the two factors that affect the momentum of an object?

• speed and velocity

• time and mass

• distance and displacement

• mass and velocity

What is the momentum of 11 kg wagon rolling down a hill at 10 m/s?

• 100 kg m/s

• 110 kg m/s

• 120 kg m/s

• 130 kg m/s

Tags

NGSS.HS-PS2-2