Work, Force, and Motion

When the net force is zero, the forces on an object are balanced. True or false.

• true
• false

For every action there is an equal and opposite reaction.

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• None of them

A push or pull that causes an object to move, stop, or change direction.

• force

• friction

• gravity

• weight

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NGSS.MS-PS2-2

NGSS.MS-PS2-1

Which force is shown in this picture?

• push

• pull

• gravity

• friction

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NGSS.3-PS2-1

NGSS.5-PS2-1

the speed and direction of an object is known as its

• velocity
• momentum
• inertia
• mass

The distance an object can travel in a specific amount of time is its

• motion
• position
• speed
• inertia

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NGSS.MS-PS3-1

Which of the following scenarios is an example of Newton's 3rd Law of Motion at work?

• Two football players run toward each other and crash into one another.  Both players fall backwards.
• Kicking a soccer ball across a field
• A car accelerates faster as it travels down a highway
• The moon orbits around Earth

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NGSS.MS-PS2-1

If these boys are pulling with the same amount of force.  What will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.

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NGSS.MS-PS2-2

NGSS.MS-PS2-1

Why is person B having a hard time moving down the hill?

• Person B has more friction than person A.
• Person B has the same friction as person A.
• Person B is out of shape.
• Person B has less friction than person A.

Tags

NGSS.MS-PS2-2

What is the formula for force?

• F=M/A
• F=A/M
• F=M*A
• F=M*F

Tags

NGSS.HS-PS2-1