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- 1. Fill in the Blank
Two unlike poles on a magnet will do what?
- 2. Fill in the Blank
Two alike poles on a magnet will do what?
- 3. Multiple Choice
What are 3 types of magnets?
temporary
permanent
electromagnet
demipermanent
- 4. Fill in the Blank
What is a magnetic field?
- 5. Fill in the Blank
Name 5 uses of magnets in our everyday life.
- 6. Fill in the Blank
Where on a magnet would you find its strongest pull?
- 7. Fill in the Blank
What are magnets made of?
- 8. Fill in the Blank
What type of materials do magnets attract?
- 9. Fill in the Blank
Magnetic rocks are called
- 10. Fill in the Blank
A magnet has two ends, each called magnetic
- 11. Fill in the Blank
Magnetic poles that are alike each other.
- 12. Multiple ChoiceWhich of the following provides stored energy to run the circuit?BatteryLight BulbSwitchWire
- 13. Multiple ChoiceWhich of the following controls the flow of electricity by opening and closing the circuit?BatteryLight BulbSwitchWire
- 14. Multiple ChoiceWhich of the following produces light when part of a complete circuit?BatteryLight BulbSwitchWire
- 15. Multiple ChoiceWhich kinds of materials make good conductors?FabricMetalPlasticWooden
- 16. Multiple ChoiceElectric energy can be transformed intolight, mechanical, sound, and heattaste, sound, stored, and heatstored, mechanical, taste, and lightsound, mechanical, taste, and heat
- 17. Multiple ChoiceWhich of the following is NOT a source of energy?D-cell batteryFoodSunWire
- 18. Multiple ChoiceA light bulb in a circuit transfers energy intoMotionheat and lightsound and lightlight
- 19. Multiple ChoiceA complete circuit includes a wire, a battery,a switch and motora motor and light bulba solar panel and motorswitch and a solar panel
- 20. Multiple Choice
Which of the following statements is correct about electrical insulators?
They do not contain any atoms.
Their protons are not allowed to move about freely.
The electrons are not able to move about freely.
They are good at conducting heat only.
- 21. Multiple Choice
Which of the following best explains an electric current?
An electric current is the flow of positive charges in a circuit.
An electric current is the flow of atoms in a circuit.
An electric current is the flow of electrons in a circuit.
An electric current is the flow of neutrons in a circuit.
- 22. Multiple Choice
Which of the following substances is the best conductor of electricity?
Glass
Wood
Water
Mercury
- 23. Multiple Choice
Which of the following is the SI unit for electric current?
Ohm
Watt
Ampere
Volt
- 24. Multiple Choice
An electric kettle is commonly used to heat up water at home. The heating element used is nichrome wire and not copper. Which of the following reasons best explains why nichrome is used instead of copper?
Nichrome conducts more current than copper, so more heat can be generated.
Nichrome has higher resistance than copper, so more heat can be generated.
Nichrome has higher voltage than copper, so more heat can be generated.
Nichrome are cheaper than copper, so it is more economical.
- 25. Multiple Choice
Which of the following materials is used in a light bulb to produce heat and light?
Nichrome
Copper
Tungsten
Steel
- 26. Multiple Choice
Which of the following electrical appliances does not make use of a variable resistor?
Volume controls in radio
Dimmers in cinemas
Speed control of a toy car
Electric kettle
- 27. Multiple Choice
A higher resistance in a circuit causes a _____________.
higher voltage
larger current
smaller current
lower voltage
- 28. Multiple Choice
Which of the following is not a source of electrical energy?
ammeter
dry cell
mains
dynamo
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