DCB Edexel IGCSE Physics Section 4 Energy Resources

What is the correct UNIT for energy?

• W

• E

• J

• M

What is the correct SYMBOL for power?

• W

• E

• P

• F

The unit for power is the Watt, W. What is the equivalent UNIT to this?

• N/kg

• m/s

• E/t

• J/s

Which of the following is NOT a type of energy STORE.

• Thermal

• Magnetic

• Wind

• Nuclear

Which of the following is NOT a type of energy TRANSFER

• Kinetic

• Sound

• Mechanical

• Light

Complete the sentence.

For a dropped pen, the GPE before being dropped is ________ as the KE before it lands on the ground.

• more than

• less than

• the same

Which of the following transfers is wasted energy for a T.V.?

• Light

• Sound

• Heat

• Electricity

What is the correct form of the equation?

• $W\ =\ \frac{F}{d}$

• $W\ =\ F+d$

• $W\ =\ F\times d$

• $W\ =F-d$

What is "Work Done"?

• Energy Transferred

• Energy Wasted

• Useful Energy

• Energy Efficiency

What is the correct form of the equation?

• $KE=\frac{1}{2}m\times v$

• $KE=\frac{1}{2}m\times v^2$

• $KE=m\times v$

• $KE=m\times v^2$