Gravity Review

Which object has more gravitational potential energy, a 10kg object at a height of 10m or a 10kg object at a height of 5m?

• The object at 10 m
• Same GPE
• The object at 5m
• Depends on horizontal velocity

Tags

NGSS.MS-PS3-2

When an object is moving at a constant speed the forces on it are...

• Balanced
• More than friction
• Unbalanced
• Greater in the direction of motion

Tags

NGSS.MS-PS2-2

When an object is accelerating the forces on the object are...

• Unbalanced
• Less in the direction of motion
• Greater in the direction of motion
• Balanced

Tags

NGSS.MS-PS2-2

What is the weight of a 100kg object?

• 980N
• 100kg
• 100N
• 9.8N

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Compare weight and mass

• Mass is how much matter an object has, weight is how much gravity pulls the object
• Weight is how much matter an object has, mass is how much gravity pulls on the object
• They are the same thing
• DUMMY_CHOICE

I am on a mission in deep space, far away from any planets, stars, or other large space objects. Select which statement is true:

• My mass has not changed but I weigh almost nothing
• My weight has not changed but I have almost no mass
• My weight and mass are unchanged
• I have almost no mass and almost no weight

Tags

NGSS.MS-PS2-4

You are in an elevator and it begins to accelerate upward. Compare the forces on you

• Normal force > Weight
• Depends on your starting velocity
• Weight > Normal force
• Normal force = Weight

Tags

NGSS.MS-PS2-2

You are in an elevator and it begins to accelerate downward. Compare the forces on you

• Weight > Normal force
• Normal force > Weight
• Normal force = Weight
• Depends on your starting velocity

Tags

NGSS.HS-PS2-1

You are in an elevator going at a constant speed. Compare the forces on you

• Normal force = Weight
• Weight > Normal force
• Depends on your starting velocity
• Normal force > Weight

Tags

NGSS.HS-PS2-1

You throw a ball up into the air. While the ball is in the air, the total energy of the ball-Earth system is...

• KE + GPE
• Changing
• Just KE
• Just GPE

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5