Science 6 Review (Physics)

1. Which of the following has thermal/heat energy?

• stone on the ground

• steam for boiling water

• juice in a glass

• a battery in a flashlight

2. Which is true about sound energy?

• It is a form of energy that is used for producing light

• It is a form of energy that is used to burn fossil fuels

• It is affected by the mass of an object

• It is a result of vibrations that travel through a medium

3. What form of energy does gasoline store?

• chemical

• sound

• light

• mechanical

4. A group of Grade 6 students was given a toy robot. What should be done to operate the toy?

• Put a battery in it.

• Heat it.

• Expose it to the sun.

• Place it near a loud radio.

5. What form of energy is needed to heat water using a plugged kettle?

• electrical

• radiant

• mechanical

• chemical

6. Which simple machine may not be used for lifting heavy objects?

• inclined plane

• wedge

• pulley

• lever

7. Michael uses a spade (shovel) to scoop soil from the ground. What type of simple machine is a spade?

• lever

• wedge

• inclined plane

• pulley

8. Which simple machine may be used to lift a box up with less force?

• lever

• wedge

• screw

• wheel and axle

9. Who among the following students' practices improper handling of simple machines?

• Lorry, who placed her scissors back into the drawer after using it

• Ela, who used a knife to open their door when she left her keys

• Miggy, who checked the screws for rust before using them

• Mario, who greases the gears of his bicycle once a month

10. Which is true about a screw?

• It is a kind of an inclined plane.

• It is made of wheels.

• It is used to lift heavy objects.

• It can only be used in combination with other simple machines.