Forces

What is the net force?

• 65 N left
• 65 N right
• 35 N left
• 35 N right

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A toy car was used in an investigation about forces. During which of the following scenarios was the car experiencing balanced forces?

• The toy car speeds up as it rolls down a ramp.
• The toy car travels forward at a constant speed.
• The toy car slows down as it rolls up a hill.
• The toy car changes direction at a constant speed.

The force that pulls things toward earth.

• Speed
• Gravity

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NGSS.5-PS2-1

What is the net force?

• 17 N Right
• 3 N Right
• 3 N Left
• 17 N Left

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

Friction and gravity are both examples of a force.

• True

• False

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NGSS.MS-PS2-2

NGSS.MS-PS2-4

What is a force?

• the PUSH or PULL on an object 
• The MOTION an object creates
• The objects HITTING one another
• Going REALLY FAST

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NGSS.MS-PS2-1

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What is the unit for FORCE? 

• N (Newtons)
• lbs (pounds)
• g (grams)
• m/s (meters per second)

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

What does the strength of gravity between two objects depend upon?

• Mass & distance
• Mass & weight
• Gravity & inertia
• Inertia & mass

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NGSS.MS-PS2-4

This type of force resist motion between two surfaces that are pressed together

• contact
• gravity
• friction

A type of friction that occurs when air pushes against a moving object causing it to decelerate.

• surface area
• air resistance
• velocity
• gravity