Physics Unit Review

What is the SI unit for force?

• meter
• meters per second
• Newton
• Watt

Tags

NGSS.MS-PS2-5

What is the SI unit for length (distance)?

• meter
• meters per second
• Newton
• Watt

What is the SI unit for mass?

• meter
• liter
• gram
• Newton

What is the net force when the forces acting on an object are balanced?

• less than 0 N
• more than 0 N
• equal to 0 N
• 100 N

Tags

NGSS.MS-PS2-2

Friction acts

• in the same direction as motion
• only on objects that are not in motion
• in the opposite direction of motion
•  only on objects that are in fluids

The amount of gravity between two objects depends on their masses and the

• distance between them
• friction between them
• total velocity of the objects
• net force of the objects

Tags

NGSS.MS-PS2-4

The force of gravity on an object is known as its

• friction
• acceleration
• mass
• weight

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NGSS.MS-PS2-4

Air resistance acts in what direction on a falling object?

• upward
• sideways
• downward
• backwards

What causes an object's motion to change?

• zero force
• inertia
• balanced force
• unbalanced force

Tags

NGSS.MS-PS2-2

Newton's Third Law of Motion says that for every action there is an equal and opposite reaction. This means that

• forces do not act on moving objects
• forces only act on moving objects
• forces come in action-reaction pairs
• forces act only in the opposite direction of motion

Tags

NGSS.MS-PS2-1