1. Gravity is a contact force that acts between two separate objects.

True
False

2. Gravity is the force exerted by the Earth which is equivalent to the mass of an object.

True
False

3. Gravity on the Moon is less than the gravity on the Earth.

True
False

4. Friction, unlike gravity, is a noncontact force.

True
False

5. Friction keeps objects from sliding off surfaces.

True
False

6. The principle of gravity was discovered by Sir Isaac Newton.

True
False

7. Friction is the force that opposes the push of gravity on objects.

True
False

8. The lesser the mass of an object, the greater the pull of gravity on it.

True
False

9. Gravity keeps anything from going up.

True
False

10. Gravitational pull between objects increases as the distance between them decreases.

True
False