Physics- Forces

What is the SI unit for force?

• N - Newton

• lb - Pound

• kg - Kilogram

• n - Nexus

What is the net force on the object?

• -4 N

• 4 N

• 2 N

• -6 N

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NGSS.MS-PS2-2

What is the net force on the object?

• -4 N

• 4 N

• 2 N

• -6 N

Tags

NGSS.MS-PS2-2

The diagram shows a box being pulled up the ramp. Which letter represents normal force?

• A

• B

• C

• D

Tags

NGSS.HS-PS2-1

If a force of 26 N is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, which ball will have the greater acceleration?  (F=ma)

• The one with a mass of .78 kg will have the greatest acceleration.
• The one with a mass of .52 kg will have the greatest acceleration.
• They will both accelerate at the same rate.

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NGSS.MS-PS2-2

According to Newton’s first law of motion, a moving object that is not acted on by an unbalanced force will

• remain in motion.
• eventually come to a stop.
• change its momentum.
• accelerate.

If a 10 kilogram object accelerates suddenly at 15 m/s², what is the net force?

• 150 Newtons

• 15 Newtons

• 150 kilograms

• 100 kilograms

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NGSS.HS-PS2-1

Unbalanced forces make an object:

• Come to rest
• move at constant velocity
• accelerate
• move

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NGSS.MS-PS2-2

What can we say about the forces of an object that is not moving?

• there must only be one force acting on it

• The forces must be balanced

• the forces must be unbalanced

• it must be very heavy

A 20 kg bike accelerates forward at 10 m/s². The forward force is 1000N. What is the total backward force?

• 200 Newtons

• 150 Newtons

• 800 Newtons

• 500 Newtons

Tags

NGSS.MS-PS2-2