Unit 2 Key Concepts Review

A ____________ is required to change the velocity of an object.

How an object changes velocity depends on the ___________________ of the force exerted on that object.

A stronger force can cause a ________________ change in velocity.

Understanding a cause-and-effect relationship can help you ______________ what led to a particular result.

If the _____________ strength force is exerted on two objects but the objects have different masses, the object with less mass will have a greater change in velocity.

If the same strength force is exerted on two objects but the objects have different masses, the object with _____________ mass will have a greater change in velocity.

If the same strength force is exerted on two objects but the objects have different masses, the object with less mass will have a _________________ change in velocity.

When two objects collide, a force is exerted on each object. The two forces are exerted in __________________ directions, but they are the same strength.

When two objects collide, a force is exerted on each object. The two forces are exerted in opposite directions, but they are the ___________ strength.

The greater the mass the __________________ the change in velocity.

• greater

• smaller