Unit 3 Gravity, Magnetic, and Newton's Laws

A force is a push or a pull on an object that results from its interaction with another object.

• True
• False

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NGSS.MS-PS2-1

Only large objects with mass have gravity.

• True
• False

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The combined force of all forces acting on an object is the  ___ force.

• net
• big
• bad
• use

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NGSS.MS-PS2-2

When the forces acting upon an object are UNBALANCED , the object will ____

• stay still
• move
• bounce
• fly

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NGSS.MS-PS2-2

Newton's second law is applied as the formula _____

• Force = Mass X Acceleration
• Speed = distance / time
• a + b = c
• huh?

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NGSS.MS-PS2-2

The SI units for force are...

• Kilograms
• Newtons
• Meters per second
• Pounds

Which of the following explains the difference between speed and velocity?

• One has motion, and the other does not.
• One has direction, and the other does not.
• One involves time, and the other does not.
• One involves acceleration, and the other does not.

Acceleration is caused by a force acting on a mass.

• Newton’s first law of motion
• Newton’s second law of motion
• Newton’s third law of motion

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NGSS.MS-PS2-2

A(n) __________ is a push or pull.

• newton
• acceleration
• force
• momentum

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

In order to be ____ forces, their effects must cancel each other out and not cause a change in an object's motion.

• balanced
• strong
• weak
• normal

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NGSS.MS-PS2-2