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jamestomLv1
8 Dec 2021
Grade 9 Science electricity multiple choice:
- All of the following are examples of a load in an electric circuit, except…
- heaters b. motors c. lamps d. batteries
- A continuous path in which electrons can flow is called a(n)…
- electric circuit b. photovoltaic cell c. electric cell d. electrolyte
- The part of an electric circuit that converts electrical energy into other forms of energy is called a(n)…
- connecting wire b. energy source c. load d. switch
- What type of energy does a fan convert into motion?light energy b. thermal energy c. electrical energy d. none of the above
- An electric cell that may only be used once is called a… a. primary cell secondary cell c. fuel cell d. photovoltaic cell
- Electrons will only flow in an electrical circuit if …
- the circuit breaker is open. c. their path is complete and continuous
- there is a gap between the conductors d. the switch is not closed.
- The rate at which electric charges (electrons) move past a given point in a circuit is called…
- voltage b. resistance c. current d. none of the above
- The symbol for electric current is…
- I b. V c. A d. C
- A device used to measure potential difference is called a(n)…
- electroscope b. ohmmeter c. ammeter d. voltmeter
- Electrical resistance is measured in…
a. amperes b. watts c. ohms d. volts
- Electrical Resistance is the ability (or force) that …
- stops or slows down the electric charges in a circuit
- that can either help or stop the electric charges in a circuit
- helps or speeds up the electric charges in a circuit
- none of these are correct
- Loads connected in series…
- do not affect the total resistance of the circuit c. increase the total resistance of the circuit
- decrease the total resistance of the circuit d. It depends on the wattage of the loads
- What will happen to other lamps on a parallel circuit if an additional light bulb is added?
- They will continue to glow the same brightness c. Some will get brighter and some will go out
- They will all continue to glow and will get brighter d. They will all go out
- A series circuit has three identical lamps. The potential difference of the energy source is 30V. The resistance of each lamp is 5 Ω. What is the current through each lamp? (Hint: draw a picture of the circuit)
- 0.167 A b. 2 A c. 6 A d. 150 A
- One watt of electrical power is equal to…
- one joule per second b. one joule per minute c. ten joules per second d. ten joules per minute
- Electrical energy in your home is measured in…
- Joules b. Amps c. Kilowatt-Hours d. Watts
- If you wish to lower your energy costs, which of the following times would be best to use an electric clothes dryer?
- Monday at 1:00 p.m. b. Tuesday at 9:00 a.m. c. Friday at 3:00 p.m. d. Saturday at 8:00 p.m.
- An older electrical safety device that contains a small wire that melts and breaks apart when current is too high is a…
- Circuit Breaker b. Fuse c. Ground Fault Interrupter d. 3-hole outlet
- This electrical safety device, which is typically found in bathrooms, sc
- Circuit Breaker b. Fuse c. Ground Fault Interrupter d. 3-hole outlet
- Which of the following devices measures the amount of energy used every hour in a house or apartment building?
- Phantom load b. Fuse c. Smart Meter d. Ground Fault Interrupter
Grade 9 Science electricity multiple choice:
- All of the following are examples of a load in an electric circuit, except…
- heaters b. motors c. lamps d. batteries
- A continuous path in which electrons can flow is called a(n)…
- electric circuit b. photovoltaic cell c. electric cell d. electrolyte
- The part of an electric circuit that converts electrical energy into other forms of energy is called a(n)…
- connecting wire b. energy source c. load d. switch
- What type of energy does a fan convert into motion?light energy b. thermal energy c. electrical energy d. none of the above
- An electric cell that may only be used once is called a… a. primary cell secondary cell c. fuel cell d. photovoltaic cell
- Electrons will only flow in an electrical circuit if …
- the circuit breaker is open. c. their path is complete and continuous
- there is a gap between the conductors d. the switch is not closed.
- The rate at which electric charges (electrons) move past a given point in a circuit is called…
- voltage b. resistance c. current d. none of the above
- The symbol for electric current is…
- I b. V c. A d. C
- A device used to measure potential difference is called a(n)…
- electroscope b. ohmmeter c. ammeter d. voltmeter
- Electrical resistance is measured in…
a. amperes b. watts c. ohms d. volts
- Electrical Resistance is the ability (or force) that …
- stops or slows down the electric charges in a circuit
- that can either help or stop the electric charges in a circuit
- helps or speeds up the electric charges in a circuit
- none of these are correct
- Loads connected in series…
- do not affect the total resistance of the circuit c. increase the total resistance of the circuit
- decrease the total resistance of the circuit d. It depends on the wattage of the loads
- What will happen to other lamps on a parallel circuit if an additional light bulb is added?
- They will continue to glow the same brightness c. Some will get brighter and some will go out
- They will all continue to glow and will get brighter d. They will all go out
- A series circuit has three identical lamps. The potential difference of the energy source is 30V. The resistance of each lamp is 5 Ω. What is the current through each lamp? (Hint: draw a picture of the circuit)
- 0.167 A b. 2 A c. 6 A d. 150 A
- One watt of electrical power is equal to…
- one joule per second b. one joule per minute c. ten joules per second d. ten joules per minute
- Electrical energy in your home is measured in…
- Joules b. Amps c. Kilowatt-Hours d. Watts
- If you wish to lower your energy costs, which of the following times would be best to use an electric clothes dryer?
- Monday at 1:00 p.m. b. Tuesday at 9:00 a.m. c. Friday at 3:00 p.m. d. Saturday at 8:00 p.m.
- An older electrical safety device that contains a small wire that melts and breaks apart when current is too high is a…
- Circuit Breaker b. Fuse c. Ground Fault Interrupter d. 3-hole outlet
- This electrical safety device, which is typically found in bathrooms, sc
- Circuit Breaker b. Fuse c. Ground Fault Interrupter d. 3-hole outlet
- Which of the following devices measures the amount of energy used every hour in a house or apartment building?
- Phantom load b. Fuse c. Smart Meter d. Ground Fault Interrupter
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suandrip3827Lv10
8 Dec 2021
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