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Energy

Test Description: Integrated science 9th

Instructions: Answer all questions to get your test result.

1) The kinetic energy of an object increases as its ____ increases.

Aspecific heat Bgravitational energy Cvelocity Dpotential energy

2) Increasing the speed of an object ____ its potential energy.

Adoes not affect Bdecreases Cincreases Dchanges

3) The SI unit for energy is the ____.

Ameter per second Bkilogram Cjoule Dcalorie

4) You can calculate kinetic energy by using the equation ____.

AKE (J) = 1/2 m (kg) x v 2 (m 2 /s 2 ) BKE (J) = w (m) x h (m) CKE (J) = 9.8 m/s 2 x 1/2 m (kg) DKE (J) = m (kg) x 9.8 m/s 2 x h (m)

5) Which of the following devices does not make use of electrical energy?

Adigital camera Bupright piano Ctoaster Dradio

6) A bus engine transfers chemical potential energy into ____ so that the bus moves.

Athermal energy Belectrical energy Cgravitational potential energy Dkinetic energy

7) In a nuclear fusion reaction, mass is transformed into ____.

Anuclei Benergy Clight Dmatter

8) You can calculate gravitational potential energy by using the equation ____.

AGPE (J) = m (kg) x 9.8 m/s 2 п‚ґ h (m) BGPE (J) = 1/2h (m) x w (m) CGPE (J) = h (m) x 9.8 m/s 2 DGPE (J) = 1/2m (kg) x 1/2h (m)

9) According to the law of conservation of energy, the total amount of energy in the universeВ ____.

Achanges constantly Bremains constant Cdecreases Dincreases

10) what occurs when energy is transferred from one object to another

Aa change Ban explosion Ca chemical reaction Dnuclear fusion

*select an answer for all questions

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