Chapter 7: Electricity

1. Energy is needed by living organism for life processes such as...

• respiration

• growth

• locomotion

• baking cakes

2. Examples of non-living things that use energy to function.

• rocks

• water

• machine

• robot

• horse

3. electrostatic charge is static or non-moving charge.

• true

• false

4. Object that receive electron and have more electron than protons in its body is known as positively charged object

• true

• false

5. Electrostatic force is the attraction and repulsion of electrical charges

• true

• false

6. The presence of electrical charges on a substance can be determined using an electroscope

• true

• false

• Neutral object

• Negatively charged object

• Positively charged object

• Neutral object

• Negatively charged object

• Positively charged object

• Neutral object

• Negatively charged object

• Positively charged object

10. Sparks are caused by the transfer of....

• protons from the dome to the metal ball through the air

• electrons from the metal ball to the dome through the air

• electrons from the dome to the metal ball through the air

• electrons from the metal ball to the dome through the wire connecting them.