Forces and Motion Unit Review

Which of the following is a chemical change?

• ripping a newspaper

• cooking an egg

• ice melting

• mixing pretzels, peanuts, and M&Ms

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Water in the freezer turns to ice. Which best describes this change?

• the water changed from a liquid to a solid

• the water changed from a solid to a liquid

• the water changed from a liquid to a gas

• the water changed from a gas to a liquid

Tags

NGSS.MS-PS1-4

Folding paper and ice melting are examples of a substance being altered but no new substance being formed. Which term best describes this process?

• physical substance

• physical change

• chemical substance

• chemical change

To lift a chair off of the floor, which force must you overcome?

• energy

• friction

• gravity

• inertia

Tags

NGSS.MS-PS2-4

If an object is not moving and is at rest, what will the object tend to do?

• start moving

• gain inertia

• lose momentum

• remain at rest

What kind of force can change the movement of an object?

• unbalanced forces

• balanced forces

• reaction forces

• resistant forces

Tags

NGSS.MS-PS2-2

Four toy cars with different masses are rolling toward a student with the same velocity. On which car would the student need to apply the greatest force to stop its motion?

• 250 grams

• 225 grams

• 200 grams

• 175 grams

Tags

NGSS.MS-PS2-2

Joey ran 6 miles in two hours at 3 mph. What does the 3 mph represent about Joey?

• his speed

• his motion

• his force

• his friction

Tags

NGSS.MS-PS3-1

Which car is traveling the fastest?

• Car Y

• Car X

• Car W

Tags

NGSS.MS-PS3-1

What part of the graph shows when the object is stationary?

• between 0 and 1 minutes

• between 1 and 2 minutes

• between 2 and 3 minutes

• between 3 and 4 minutes

Tags

NGSS.MS-PS3-1