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physical science comprehension 1

Total questions: 50

Worksheet time: 3hrs 44mins

Name
Class
Date
1.

A student walks 2.0 km in a time of 30 minutes. The student then stop for 15 minutes to eat a snack then travels 1.0 km in 15 minutes.

a)
b)
c)
d)
2.

A student travels 2 km in 30 minutes. The student then travels another 2 km in only 10 minutes. After that, the student rests.

a)
b)
c)
d)
3.

A girl rides her bike 3 km in 20 minutes. She then returns home in only 10 minutes to get her lunch. She then travels 10 km in only 20 minutes.

a)
b)
c)
d)
4.
Jacob ran a 5k in 24 minutes.
a)
Speed
b)
Velocity
c)
Acceleration
5.
A train travels 90 km in an hour
a)
Speed
b)
Velocity
c)
Acceleration
6.
A storm is traveling 25 km/hr eastward
a)
Speed
b)
Velocity
c)
Acceleration
7.
Macie walks in the door of the movie theater and then stops to look for an open seat.
a)
Speed
b)
Velocity
c)
Acceleration
8.
Speed=
a)
T/D
b)
D/T
c)
S x T
d)
D x T
9.
Which is an example of VELOCITY?
a)
A dog running at 3 m/s
b)
A deer sprinting at 4 m/s
c)
A migrating bird headed south for the winter at 3 m/s
d)
A person not moving at all
10.
Which is an example of VELOCITY?
a)
A dog running at 3 m/s
b)
A deer sprinting at 4 m/s
c)
A migrating bird headed south for the winter at 3 m/s
d)
A person not moving at all
11.
Which is an example of SPEED?
a)
5 SECONDS
b)
2 METERS PER SECOND
c)
4 METERS
d)
1 HOUR
12.
a)
Object not moving
b)
Object accelerating
c)
Object slowing down
d)
Object at a constant speed
13.
a)
Object not moving
b)
Object accelerating
c)
Object slowing down
d)
Object at a constant speed
14.
a)
Object not moving
b)
Object accelerating
c)
Object slowing down
d)
Object at a constant speed
15.
Slowing down is an example of...
a)
Constant speed
b)
Acceleration
16.
What is velocity?
a)
the quickness of an object
b)
the location of an object
c)
acceleration
d)
speed in a specific direction
17.

States that force equals mass x acceleration

a)

Newtons 1st law

b)

Newtons 2nd law

c)

Newtons 3rd law

18.

Claims if an object exerts a force on another object, the second object exerts a force of equal strenght in the opposite direction back towards the first object

a)

Newtons 1st law

b)

Newtons 2nd law

c)

Newtons 3rd law

19.

States an object at rest will remain at rest unless acted on by an unbalanced force

a)

Newtons 1st law

b)

Newtons 2nd law

c)

Newtons 3rd law

20.

What unit is used to measure voltage?

a)

Ohms

b)

Omega

c)

Volts

d)

Amps

21.

What unit is used to measure current?

a)

Ohms

b)

Omega

c)

Volts

d)

Amps

22.
What kind of circuit is this?
a)
series
b)
parallel
23.
The picture shows an electrical circuit. This circuit is a series circuit because: 
a)
It has 3 light bulbs.
b)
The same current flows through all three light bulbs.
c)
It uses a single battery.
d)
The electrical current has more than one path to flow through
24.

Simple, Series, or Parallel?

a)

Simple

b)

Series Circuit

c)

Parallel Circuit

25.

12. An overhead wire has a potential difference of 30,000 volts. If the current flowing through the wire is 1,000 amperes, what is the resistance of the wire?

a)

0.033 ohms

b)

30 ohms

c)

3.0 x 10^7 ohms

d)

3.0 x 10^8 ohms

26.

If the potential difference is 12 volts and the resistance is 5 ohms, what is the current?

a)

2.4 A

b)

60 A

c)

0.417 A

d)

17 A

27.
what is this symbol for?
a)
light bulb
b)
switch
c)
battery
d)
resistor
28.
The total resistance of this circuit is 
a)
25.7 ohms
b)
315 ohms
c)
324 ohms
d)
90 ohms
29.
Electrical power can be calculated using
a)
Resistance x Voltage
b)
Voltage x Current 
c)
Voltage ÷ Current
30.

Calculate the voltage applied when a 60 watt light-bulb uses a current of 5 amps

a)

300 volts

b)

30 volts

c)

12 volts

d)

0.08 volts

31.
Electricity can be used to create a magnet
a)
True
b)
False
32.
You can make an electromagnet stronger by...
a)
increasing the current through the wire
b)
make the iron core bigger
c)
increase the number of loops around the core
d)
All of these
33.
Magnets have a north and a south ___________
a)
shape
b)
color
c)
pole
d)
region
34.
Which object would a magnet attract?
a)
a glass bottle
b)
a piece of paper
c)
a metal paper clip
compass
d)
a rubber eraser
magnetic field
35.

The Earth produces its own ________ field.

a)

spectrum

b)

electric

c)

magnetic

d)

progressive

36.

Magnetism is generated by moving __________.

El magnetismo se genera al mover _____________.

a)

protons.

b)

electrons.

c)

neutrons.

d)

elements.

37.

What is transferred by a wave?

a)

energy

b)

matter

c)

particles

d)

mass

38.

The distance from one wave crest to the next crest is ____.

a)

the amplitude

b)

a trough

c)

a wavelength

d)

the frequency

39.

Choose the letter(s) that represent the trough of a wave.

a)

D only

b)

E only

c)

B and G

d)

A, C, F, and H

40.

A wavelength is the distance between which 2 points?

a)

B and G

b)

A and C

c)

C and F

d)

A and H

41.

The number of times a wave cycle repeats each second is known and the _____ of the wave.

a)

period

b)

frequency

c)

length

d)

crest

42.

Shaking a rope up and down produces which type of wave?

a)

transverse

b)

amplitude

c)

longitudinal

d)

period

43.

Sound waves are which type of waves?

a)

transverse

b)

seismic

c)

longitudinal

d)

frequency

44.

The high point on a transverse wave is called the ____.

a)

frequency

b)

lambda

c)

trough

d)

crest

45.
While electric current is flowing through a wire, what surrounds the wire?
a)
a magnetic field
b)
a glowing light
c)
neutrons
d)
protons
46.

What two forces are required for generators and electric motors to work?

a)

magnetism and thermal

b)

electricity and thermal

c)

electricity and magnetism

d)

magnetism and radiant

47.

What would happen if you broke a bar magnet into 8 pieces?

a)

You would have 8 half magnets

b)

You would have 4 complete magnets

c)

You would have 8 complete magnets

d)

They wouldn't be magnets anymore

48.

A transformer actually transforms

a)

voltage

b)

magnetic field lines

c)

generators into motors

49.

A device that transforms mechanical energy to electrical energy is a

a)

generator

b)

motor

c)

transformer

d)

magnet

50.

A device that transforms electrical energy to mechanical energy is a

a)

generator

b)

motor

c)

transformer

d)

magnet

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