6.11B - Gravity - Review

The motion of celestial bodies in our solar system is controlled by which force?

• Electricity

• Friction

• Gravity

• Magnetism

What is gravity?

• Energy that holds the solar system together

• A force of attraction felt between all objects because of their charge

• A force of attraction felt between all objects because of their kinetic energy

• A force of attraction felt between all objects because of their mass

Which of the following would increase the strength of gravity between two objects? Check all that apply.

• Decreasing the mass of the first object

• Decreasing the mass of the second object

• Increasing the mass of the first object

• Increasing the mass of the second object

Check all word pairs that complete the following sentence:

"As the mass of either or both of two objects interacting with each other _________________________________, the force of gravity in between those objects _______________________________."

• decreases; decreases

• decreases; increases

• increases; decreases

• increases; increases

Check all word pairs that complete the following sentence:

"As the distance in between two objects interacting with each other _________________________________, the force of gravity in between those objects _______________________________."

• decreases; decreases

• decreases; increases

• increases; decreases

• increases; increases

Which of the following choices would cause the biggest increase in the force of gravity between two objects?

• doubling the mass of both objects

• doubling the mass of only one object

• halving the mass of both objects

• halving the mass of only one object

What is the effect of the distance in between objects on the strength of gravitational force between them?

• Decreasing the distance between objects decreases the gravitational force in between them

• Decreasing the distance between objects increases the gravitational force in between them

• Increasing the distance between objects increases the gravitational force in between them

• The distance between the objects has no effect on the strength of gravity

The paths objects follow around other objects in space are called:

• gravity

• inertia

• orbits

• satellites

The object that orbits another object is considered the ______________________________ of the object that it is orbiting around.

• gravity

• inertia

• orbit

• satellite

Choose the word pair that best completes the following sentence referring to the diagram:

"Venus would travel endlessly in a straight line because of its own _______________________________; however, the ______________________________ of the Sun makes Venus travel in a curved path."

• electromagnetic force; inertia

• gravity; inertia

• inertia; electromagnetic force

• inertia; gravity