WorksheetsChapter 7: Electricity
Total questions: 22
Worksheet time: 14mins
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.
11. What would happen to the pointer of the Galvanometer when the Van de Graaff generator is switched on and the crocodile clip touches the dome of Van de Graaff?
deflected
vibrated
stay not moving
12. The deflection of galvanometer's pointer is caused by ...
flow of electric charged
the presence of battery
gravitational force pulling the galvanometer's pointer
presence of resistance in the wire.
13. Potential difference across two points
Current
Voltage
Resistance
14. The rate of the flow of charge in a conductor
Voltage
Current
Resistance
15. The ability of conductor to oppose the flow of electric current through it
Voltage
Current
Resistance
16. State the function of the device
To measure voltage
To measure electric current
To measure resistance
To measure electric power
17. State the function of the device
To measure voltage
To measure electric current
To measure resistance
To measure electric power
18. Circuit diagram using symbols.
19. Type of the circuit
Series circuit
Parallel circuit
20. Type of the circuit
Series circuit
Parallel circuit
21. The correct directions of electric current flow in a closed circuit
22. Correct statements about magnetic field lines
Begin from the South Pole and end at the north pole
The closer the lines to one another, the stronger the magnetic field
The magnetic field lines never meet or cross
