Science

The tendency of on objects to resist any change in motion is known as ……

• Inertia

• Acceleration

The rate at which the speed or the direction of motion of an object changes over time is its

• Acceleration

• Inertia

A force that acts at a distance is called a

• Non-contact force

• Gravity

This force of attraction between any two objects is called

• Gravity

• Force

A force that requires two pieces of matter to touch is called a

• Contact force

• Friction

is the force that results when two materials rub against each other or when their contact prevents sliding.

• Friction

• Contact force

A. Is a push or pull that acts on an object.

• Force

• Friction

What are some forces that might affect a rock as it tumbles down a hill?

• gravity, friction, air resistance, and impact forces

• Acceleration

If Earth is pulling down on you, are you pulling up on Earth?

• e, if the Earth is pulling down on you with a gravitational force of 500 N, you are also pulling up on the Earth with a gravitational force of 500 N

• Change in motion

What is needed to give a large boulder a large acceleration?

• A large force

• Inertia