Science

Which is true about mass and gravity?

• a. the lesser the mass of the object, the greater the pull of gravity

• b. the greater the mass of the object, the lesser the pull of gravity

• c. the greater the mass of the object, the greater the pull of gravity

• d. none of these, gravity and mass are not related

2. Where is the gravitational force directed when you are holding a glass?

• a. upward

• b. downward

• c. into the glass

• away from the glass

3. Where is the gravitational force directed as you stand on the floor?

• a. upward

• b. forward

• c. backward

• d. downward

4. It is a force that pulls objects towards one another.

• a. electric force

• b. gravitational force

• c. magnetic force

• d. frictional force

5. What force is generated by two surfaces that contacts and slides against each other?

• a. gravitational force

• b. nuclear force

• c. magnetic force

• d. frictional force

6. If the mass of the Earth is doubled, how much increase would the weight of the objects on earth be?

• a. halved

• b. doubled

• c. thrice

• d. remains the same

7. It is the ability to do work.

• a. friction

• b. energy

• c. magnet

• d. gravity

8. Which is not one of the forms of energy?

• a. sound energy

• b. electrical energy

• c. heat energy

• d. simple energy

9. What form of energy travels through empty space?

• a. nuclear energy

• b. sound energy

• c. radiant energy

• d. heat energy

10. What energy is produced by vibrating objects?

• a. thermal energy

• b. mechanical energy

• c. light energy

• d. sound energy