Apparent Weight ( Grav, Normal Force)

A measure of how much matter an object has is--

• weight
• gravity
• mass
• volume

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NGSS.MS-PS1-5

As an object's mass increases, its gravitational pull will ____________.

• decrease
• increase
• stay the same
• get weaker

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NGSS.HS-PS2-1

NGSS.HS-PS2-4

Why would you weigh less on the moon compared to Earth?

• less air
• less sunlight
• more gravitational pull
• less gravitational pull

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NGSS.HS-PS2-4

If the mass of an object is 1000 kg on Earth, what is it's mass on the moon?

• 10kg
• 100kg
• 1000kg
• 10,000kg

How do you calculate force of gravity?

• F_g = m/g

• F_g= m+g

• F_g= m

• F_g= m*g

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NGSS.HS-PS2-4

What is a normal force?

• It always opposes gravity. The same as a frictional force.

• It is equivalent to the weight of an object.

• It acts as a supporting force from the surface below.

• It is equivalent to mass.

Name the missing force....

• weight force
• normal force
• frictional force
• tension force

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NGSS.HS-PS2-1

What is the net force?

• 5000 N right

• 4000 N right

• 40 N left

• 4000 N left

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NGSS.HS-PS2-1

Match description with free-body diagram.

• A person in an elevator that is at rest.

• A person in an elevator that is accelerating upwards.

• A person in an elevator that is accelerating downwards.

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NGSS.HS-PS2-1

A man standing on a scale in an elevator notices that the scale reads 40 newtons greater than his normal weight.

Which type of movement of the elevator could cause this greater-than-normal reading?

• accelerating upward

• accelerating downward

• moving upward at a constant speed

• moving downward at a constant speed

Tags

NGSS.HS-PS2-1