Free fall

Which would fall with greater acceleration in a vacuum—a leaf or a stone?

• the leaf
• the stone
• They would accelerate at the same rate.
• It is difficult to determine without more information.

Tags

NGSS.HS-PS2-1

What happens to the velocity of a ball as it is dropped off a cliff? 

• It decreases at a uniform rate 
• It increases at a uniform rate 
• It is constant 
• It increases at a non-uniform rate

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

Which of the following graphs best represents free fall motion?

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Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

The state that exists when the only force acting on an object is gravity is called

• free fall

• inertia

• acceleration

• momentum

Tags

NGSS.MS-PS2-4

A baseball is thrown up into the air. What happens to the velocity as the ball rises in the air?

• the velocity increases

• the velocity decreases

• the velocity remains constant

Tags

NGSS.HS-PS2-1

The acceleration of objects falling on Earth due to gravity is

• 9.8 m/s

• 9.8 m/s²

• 9.8 g/mL

• 9.8 g/m/m

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

A girl drops a 7 gram bowling ball and a 1gram rock from a cliff. Which will hit the ground first?

• Bowling Ball

• Rock

• Ignoring air resistance, both will hit at the same time.

• The cliff

Tags

NGSS.HS-PS2-1

Define acceleration due to gravity.

• The force of gravity acting on an object.

• The velocity of an object under the influence of gravity.

• The acceleration experienced by an object due to gravity.

• The force of gravity.

Tags

NGSS.MS-PS2-4