Force

Why is it harder for the boy in Image B to get down the hill?

• Motion
• Friction
• Work
• Displacement

Tags

NGSS.MS-PS2-2

What is the standard unit force is measured in?

• Newtons
• pounds
• grams
• meters

Which force produces a change in motion?

• unbalanced force
• balanced force
• gravitational force
• frictional force

Tags

NGSS.MS-PS2-2

What is the net force?

• 5000 N right
• 4000 N right
• 40 N left
• 4000 N left

Tags

CCSS.7.NS.A.3

What is the force on a 1000 kg elevator that is falling freely at 9.8 m/sec²

• 102.04 n

• 9,800 n

• 980 n

• 103 n

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

What is the net force?

• 30 N left
• 25 N right
• 5 N left
• 55 N right

Tags

NGSS.MS-PS2-2

Fernando is walking through the cafeteria but does not realize that the person in front of him has spilled their carton of milk. Fernando's weight is 800 N. He steps in the milk. The coefficient of friction between his shoe and the floor is reduced to 0.035. What is the force of sliding friction?

• 28 N

• 35 N

• 100 N

• 67 N

A tennis ball with a mass of 0.1 kg is accelerated at a rate of 164 m/s when hit by a professional tennis player. What force does the racket exert on the ball?

• 15.3 N

• 16.4 N

• 25 N

• 13.3 N

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Find the weight of a 20g object

• 200N

• 20g

• 0.2N

• 0.02kg

What statement is true?

• Mass never changes. Weight does.

• Weight never changes. Mass does.

• Both mass and weight change because they are affected by gravity.

• Neither mass nor weight change. They are always the same.

Tags

NGSS.MS-PS2-4