AKS 8c: Gravity/Inertia/Terminal Velocity/Free Fall

Multiple Choice

Why a ball falls to the ground?

• Earth's force of gravity is GREATER than the ball's, so the ball gets attracted to the ground. 
• Earth's force of gravity is LESS than the ball's, so the ball gets attracted to the ground. 

Multiple Choice

As mass increases, what happens to gravitational force?

• increases

• decreases

• stays the same

Multiple Choice

What is the relationship between mass and gravity?

• The more mass, the weaker the gravity

• The more mass, the stronger the gravity

• Mass has no effect on gravity

• Gravity is independent of mass

Multiple Choice

How does distance affect gravitational force according to the image?

• Closer objects have weaker pull

• Farther objects have stronger pull

• Closer objects have stronger pull

• Distance has no effect

Open Ended

What is inertia and how is it measured?

Multiple Choice

What is the difference between mass and weight?

• Mass is the measure of gravity on an object

• Weight is the measure of matter in an object

• Mass is always constant regardless of location

• Weight changes based on the gravitational pull

Multiple Choice

What is the weight of a 150-pound person on Jupiter?

• 351 pounds

• 469 pounds

• 234 pounds

• 118 pounds

Multiple Choice

An open parachute increases air resistance of a falling sky diver by

• decreasing the weight of the diver.

• increasing surface area.

• increasing the terminal velocity.

• reducing fluid friction.

Multiple Choice

In Newtonian physics, ________________ is any motion of a body where gravity is the only force acting upon it.

• kinematics

• free fall

• mechanics

• velocity

Multiple Choice

If an object is free falling onto the Moon, which of the following would be correct?

• It would accelerate at 9.8 m/s²

• It would not encounter any air resistance.

• It would not fall because the Moon has no gravity.

• It would impact the surface and bounce back into space.

Multiple Choice

Which would hit the ground first if dropped from the same height in a vacuum—a feather or a metal bolt?

• the feather
• the metal bolt
• They would hit the ground at the same time.
• They would be suspended in a vacuum.

Multiple Choice

When an object is falling, and it reaches it's maximum speed because air resistance is equal to the force of gravity, the object has reached __________________________.

• Free Fall
• Terminal Velocity
• Projectile Motion
• Orbit

Multiple Choice

A measure of gravitational force on an object.

• gravity
• weight
• mass
• kilograms

Multiple Choice

Which of the following will change with different gravitational forces?

• mass
• amount of matter in an object
• weight
• kilograms

Multiple Choice

Which of the following will not change in different gravitational fields?

• wieght
• force
• mass
• pounds

Multiple Choice

As the distance between 2 objects increases, what happens to gravitational force?

• increases
• decreases
• stays the same
• i don't know

Multiple Choice

As mass increases, what happens to gravitational force?

• increases
• decreases
• stays the same
• i don't know

Multiple Choice

A force of attraction between 2 object that is directly related to mass and indirectly related to distance.

• mass
• weight
• gravity
• kilogram

Multiple Select

Terminal velocity.

Select the force arrows that apply:

Multiple Choice

When will the forces of gravity between two objects be the GREATEST?

• when the masses of both objects are small and the objects are far apart

• when the masses of both objects are large and the objects are close together

• when the masses of both objects are small and the objects are close together

• when the masses of both objects are large and the objects are far apart