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WorksheetsCh. 4 Physical Science
Total questions: 46
Worksheet time: 23mins
Name
Class
Date
1.
Distance is measured in
a)
Joules
b)
Meters
c)
Newtons
d)
Watts
2.
Energy is measured in
a)
Joules
b)
Meters
c)
Newton
d)
Watts
3.
Force is measured in
a)
Joules
b)
Meters
c)
Percent
d)
Newton
4.
Efficiency is measured in
a)
Joules
b)
Watts
c)
Percent
d)
Newtons
5.
Work is measured in
a)
Joules
b)
Meters
c)
Newtons
d)
Watts
6.
Power is measured in
a)
Joules
b)
Percent
c)
Watts
d)
Newtons
7.
A joule is equal to one
a)
Percent
b)
Newton-meter
c)
Watts-Joules
d)
Newton-Watts
8.
An example of where or how Chemical energy comes from
a)
Car using gas
b)
Fan
c)
Sun
d)
Hammer
9.
An example of where or how Electrical energy comes from
a)
Car using gas
b)
Coffee pot
c)
Sun
d)
Your body
10.
An example of where or how Radiant energy comes from
a)
Car using gas
b)
Fan
c)
Sun
d)
Hammer
11.
An example of where or how Mechanical energy comes from
a)
Pulley
b)
Household appliances
c)
Sun
d)
Your body
12.
Which is NOT a simple machine
a)
Pulley
b)
Screw
c)
Towel
d)
Lever
13.
Which is NOT a simple machine
a)
Inclined Plane
b)
Car
c)
Wedge
d)
Screw
14.
Energy transformations: When you move your leg, your body changes chemical energy supplied by food into ______ energy
a)
Electrical
b)
Mechanical
c)
Kinetic
d)
Heat
15.
Energy transformations: Energy transformation of a fan changes electrical energy to mechanical energy and also to ____ energy to ____ energy
a)
Mechanical & Electrical
b)
Kinetic & Potential
c)
Heat & Kinetic
d)
Mechanical & Kinetic
16.
Energy transformations: A stove changes electrical to ________ energy
a)
Kinetic
b)
Mechanical
c)
Heat
d)
Potential
17.
Energy transformations: A generator changes mechanical to ____ energy
a)
Potential
b)
Kinetic
c)
Heat
d)
Electrical
18.
States that energy cannot be created or destroyed
a)
Compound Machine
b)
Law of Conservation of Energy
c)
Machine
d)
Simple Machine
19.
Machine that does work with only one movement
a)
Compound Machine
b)
Law of Conservation of Energy
c)
Machine
d)
Simple Machine
20.
A device that changes the amount of force exerted, the distance over which a force is exerted, or the direction in which force is exerted
a)
Compound Machine
b)
Law of Conservation of Energy
c)
Machine
d)
Simple Michine
21.
Machine that is a combination of two or more simple machines
a)
Compound Machine
b)
Law of Conservation of Energy
c)
Machine
d)
Simple Machine
22.
The fixed point around which a lever pivots
a)
Fulcrum
b)
Lever
c)
Pulley
d)
Screw
23.
Consists of a grooved wheel with a rope or cable wrapped around it
a)
Inclined Plane
b)
Pulley
c)
Wheel & Axle
d)
Wedge
24.
Consists of a rigid bar that pivots about a fixed point
a)
Fulcrum
b)
Lever
c)
Pulley
d)
Screw
25.
Two attached circular objects that rotate about a common axis, each one with a different radius
a)
Inclined Plane
b)
Wedge
c)
Wheel & Axle
d)
Pulley
26.
Is an inclined plane wrapped around a central cylinder to form a spiral
a)
Fulcrum
b)
Lever
c)
Wedge
d)
Screw
27.
A flat sloped surface
a)
Fulcrum
b)
Inclined Plane
c)
Lever
d)
Wedge
28.
An inclined plane that moves
a)
Fulcrum
b)
Lever
c)
Screw
d)
Wedge
29.
Formula to find Power (remember it has 2)
a)
P = E/t
b)
P = t/E
c)
P = t*E
d)
There is no formula
30.
Formula for Work
a)
W = f*d
b)
W = t/d
c)
W = w/t
d)
W = E/p
31.
The percentage of the input work that is converted to output work
a)
Power
b)
Efficiency
c)
Energy
d)
Work
32.
The rate at which work is done
a)
Work
b)
Power
c)
Efficency
d)
Energy
33.
Energy due to the gravitational forces between objects
a)
Mechanical Energy
b)
Gravitational Potential Energy
c)
Kinetic Energy
d)
Chemical Potential Energy
34.
The number of times a machine increases a force exerted on it
a)
Kinetic Energy
b)
Potential Energy
c)
Mechanical Advantage
d)
Mechanical Energy
35.
Energy that is stored by compressing or stretching an object
a)
Gravitational Potential Energy
b)
Elastic Potential Energy
c)
Chemical Potential Energy
d)
Mechanical Energy
36.
Energy due to motion
a)
Kinetic Energy
b)
Potential Energy
c)
Mechanical Energy
d)
Chemical Potential Energy
37.
Stored energy due to chemical bonds
a)
Elastic Potential Energy
b)
Potential Energy
c)
Chemical Potential Energy
d)
Mechanical Advantage
38.
Stored energy due to position
a)
Potential Energy
b)
Chemical Potential Energy
c)
Kinetic Energy
d)
Mechanical Energy
39.
The sum of kinetic and potential energy of the objects in a system
a)
Kinetic Energy
b)
Potential Energy
c)
Mechanical Energy
d)
Chemical Potential Energy
40.
Forces exerted on an object that causes it to move
a)
Power
b)
Work
c)
Efficency
d)
Energy
41.
The ability to cause change or do work
a)
Power
b)
Work
c)
Efficiency
d)
Energy
42.
Formula for Power (remember it has 2)
a)
P = W/t
b)
P = t/W
c)
P = f*d
d)
P = E/p
43.
Formula for Energy
a)
E = p/t
b)
E = p*t
c)
E = t/p
d)
E = E*p
44.
Formula for time
a)
t = E/t
b)
t = p/E
c)
t = f*d
d)
t = E/p
45.
Formula for Efficiency
a)
e = Win/Wout * 100
b)
e = Wout/Win * 1000
c)
e = Wout/Win * 100
d)
e = W/t * 100
46.
Formula for Mechanical Advantage
a)
MA = Fout/Fin
b)
MA = Fin/Fout
c)
MA - Fout/e
d)
MA = Fin/e
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