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General Science Review 3.1
Test Description: What is Energy
Instructions: Answer all questions to get your test result.
1) __________ is the transfer of energy
A
power
B
potential energy
C
kinetic energy
D
work
2) _________ is the rate of energy transferred
A
work
B
potential energy
C
kinetic enery
D
power
3) What 2 things are measured in Joules?
A
energy and power
B
none of the choices
C
work and energy
D
work and power
4) One biker (A) going 5 m/s and another biker (B) going 4 m/s reach the top of a hill. Which of the following statements is true?
A
both bikers have the same amount of power
B
biker A does more work than biker B
C
both bikers do the same amount of work
D
biker B does more work than biker A
5) Kinetic energy increases when_______ and ________ increase
A
mass; volume
B
mass; velocity
C
weight; velocity
D
weight; volume
6) What is the equation for calculating kinetic energy
A
1/2 x velocity x mass^2
B
1/2 x volume x mass^2
C
1/2 x mass x volume^2
D
1/2 x mass x velocity^2
7) Gravitational potential energy depends on _________ while elastic potential energy depends on _________
A
weight; compressing
B
height; stretching
C
all of the choices
D
height; compressing
8) What is the gravitational potential energy of someone who weighs 80 N and is 5 m above ground
A
16 Joules
B
40 Joules
C
160 Joules
D
400 Joules
9) __________ increases elastic potential energy while __________ decreases it
A
weighing more; weighing less
B
stretching; compressing
C
compressing; stretching
D
weighing less; weighing more
10) What is the kinetic energy of an object with a mass of 6 kg and a velocity of 3 m/s?
A
9 Joules
B
18 Joules
C
27 Joules
D
54 Joules
*select an answer for all questions
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