Free Fall Vocabulary

Gravity is an ______________ force because it pulls, not pushes.

• attractive

• constructive

• destructive

• none of these

Tags

NGSS.MS-PS2-4

What is the definition of free fall in physics?

• Motion under the influence of gravity only

• Motion with air resistance

• Motion with constant speed

• Motion with increasing mass

Tags

NGSS.MS-PS2-4

Which of the following is true about objects in free fall?

• They experience air resistance

• They accelerate at a constant rate

• Their mass increases

• They move at a constant speed

What is the acceleration due to gravity on Earth for an object in free fall?

Tags

NGSS.MS-PS2-4

Which scientist is credited with the concept of free fall?

• Isaac Newton

• Albert Einstein

• Galileo Galilei

• Niels Bohr

Tags

NGSS.MS-PS2-4

In a vacuum, which of the following objects will hit the ground first when dropped from the same height?

• A feather

• A stone

• Both at the same time

• Neither will hit the ground

Tags

NGSS.MS-PS2-4

What is the formula for calculating the velocity of an object in free fall after time t?

Tags

NGSS.HS-PS2-4

If an object is in free fall, what forces are acting on it?

• Gravity only

• Gravity and air resistance

• Air resistance only

• No forces

Tags

NGSS.MS-PS2-4

What happens to the velocity of an object in free fall as it continues to fall?

• It increases

• It decreases

• It remains constant

• It becomes zero

Tags

NGSS.MS-PS2-4

Which of the following best describes terminal velocity?

• The constant speed reached by an object when the force of gravity is balanced by air resistance

• The initial speed of an object in free fall

• The speed at which an object hits the ground

• The speed at which an object starts to fall