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Energy

Test Description: VA SOL 6.2 and 6.3

Instructions: Answer all questions to get your test result.

1) What is the energy of motion called?

Achemical energy Belastic potential energy Ckinetic energy Dgravitational potential energy

2) What is the direct and indirect source of most energy resources?

Apotential energy Bsolar energy CGeothermal energy Dwind energy

3) When a person rubs his hands together on a cold day, friction is being used to convert

Anuclear to electrical energy Belectrical to thermal energy Cthermal to nuclear energy Dmechanical to thermal energy

4) Heated air moves from hot-air vents to the rest of a room in a process called

Aconvection Bconduction Cradiation Dinsulation

5) Besides water vapor, what must be present for clouds to form?

Asunlight Ba strong wind Cdew Dparticles of salt, dust or smoke

6) A carbon dioxide (CO2) molecule is made up of

Atwo carbons joined together Btwo carbon atoms bonded to one oxygen atom Cone carbon atom bonded to two oxygen Dtwo oxygen atoms bonded to one carbon atom

7) Because burning fossil fuels creates much pollution, alternatives are being investigated. What might limit the use of wind as a major resource?

AThe amount of wind can vary. BWind power does not create pollution. CWind machines have huge blads to capture the wind. DTurbines and generators in the wind machines create electricity.

8) Which is the chemical break-up of H2O?

AH- O+ H+ BH+ H+ O- CH- H- O- DH+ H- O-

9) Which is not a fossil fuel?

Acoal Boil Cnuclear Dpetroleum

10) Uneven heating of the air near Earth's surface causes

Awind Brain Cice storms Dcloud formation

*select an answer for all questions

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