CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
A 1000 W appliance runs for 3 h. Electrical energy used is:
A. 3 kWh
B. 4 kWh
C. 2 kWh
D. 5 kWh
Correct Answer: A
Energy = kW × h.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
A 1000 W appliance runs for 2 h. Electrical energy used is:
A. 2 kWh
B. 1 kWh
C. 4 kWh
D. 3 kWh
Correct Answer: A
Energy = kW × h.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
A 1000 W appliance runs for 1 h. Electrical energy used is:
A. 2 kWh
B. 3 kWh
C. 1 kWh
D. 0 kWh
Correct Answer: C
Energy = kW × h.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
A 500 W appliance runs for 10 h. Electrical energy used is:
A. 4 kWh
B. 6 kWh
C. 5 kWh
D. 7 kWh
Correct Answer: C
Energy = kW × h.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
A 500 W appliance runs for 5 h. Electrical energy used is:
A. 2.75 kWh
B. 2.25 kWh
C. 3.5 kWh
D. 2.5 kWh
Correct Answer: D
Energy = kW × h.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
A 500 W appliance runs for 3 h. Electrical energy used is:
A. 1.65 kWh
B. 2.5 kWh
C. 1.35 kWh
D. 1.5 kWh
Correct Answer: D
Energy = kW × h.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
A 500 W appliance runs for 2 h. Electrical energy used is:
A. 0 kWh
B. 2 kWh
C. 1 kWh
D. 3 kWh
Correct Answer: C
Energy = kW × h.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
A 500 W appliance runs for 1 h. Electrical energy used is:
A. 0.45 kWh
B. 0.5 kWh
C. 0.55 kWh
D. 1.5 kWh
Correct Answer: B
Energy = kW × h.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
A 100 W appliance runs for 10 h. Electrical energy used is:
A. 2 kWh
B. 3 kWh
C. 1 kWh
D. 0 kWh
Correct Answer: C
Energy = kW × h.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
A 100 W appliance runs for 5 h. Electrical energy used is:
A. 0.45 kWh
B. 0.5 kWh
C. 1.5 kWh
D. 0.55 kWh
Correct Answer: B
Energy = kW × h.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
A 100 W appliance runs for 3 h. Electrical energy used is:
A. 0.3 kWh
B. 0.27 kWh
C. 1.3 kWh
D. 0.33 kWh
Correct Answer: A
Energy = kW × h.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
A 100 W appliance runs for 2 h. Electrical energy used is:
A. 0.18 kWh
B. 0.22 kWh
C. 1.2 kWh
D. 0.2 kWh
Correct Answer: D
Energy = kW × h.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
A 100 W appliance runs for 1 h. Electrical energy used is:
A. 0.1 kWh
B. 0.11 kWh
C. 1.1 kWh
D. 0.09 kWh
Correct Answer: A
Energy = kW × h.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
A 60 W appliance runs for 10 h. Electrical energy used is:
A. 1.6 kWh
B. 0.6 kWh
C. 0.54 kWh
D. 0.66 kWh
Correct Answer: B
Energy = kW × h.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
A 60 W appliance runs for 5 h. Electrical energy used is:
A. 1.3 kWh
B. 0.27 kWh
C. 0.33 kWh
D. 0.3 kWh
Correct Answer: D
Energy = kW × h.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
A 60 W appliance runs for 3 h. Electrical energy used is:
A. 0.2 kWh
B. 1.18 kWh
C. 0.16 kWh
D. 0.18 kWh
Correct Answer: D
Energy = kW × h.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
A 60 W appliance runs for 2 h. Electrical energy used is:
A. 1.12 kWh
B. 0.11 kWh
C. 0.13 kWh
D. 0.12 kWh
Correct Answer: D
Energy = kW × h.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
A 60 W appliance runs for 1 h. Electrical energy used is:
A. 0.07 kWh
B. 0.05 kWh
C. 1.06 kWh
D. 0.06 kWh
Correct Answer: D
Energy = kW × h.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
A 40 W appliance runs for 10 h. Electrical energy used is:
A. 1.4 kWh
B. 0.44 kWh
C. 0.36 kWh
D. 0.4 kWh
Correct Answer: D
Energy = kW × h.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
A 40 W appliance runs for 5 h. Electrical energy used is:
A. 0.22 kWh
B. 1.2 kWh
C. 0.18 kWh
D. 0.2 kWh
Correct Answer: D
Energy = kW × h.