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2020 Final Practice Test

Total questions: 55

Worksheet time: 1hrs 23mins

Name
Class
Date
1.
What voltage is needed to cause a 2A current flow through a 10Ω resistor?
a)
5V
b)
0.2V
c)
20V
d)
200V
2.
What resistance is needed to cause a 50A current flow because of a 500V battery?
a)
10Ώ
b)
5Ώ
c)
2500Ώ
d)
550Ώ
3.
If the battery produced 12.6 Volts and what would be the current flow be for a 6 Ohm resistor
a)
2.1 Amps
b)
2.4 Amps
c)
1.71 Amps
d)
15 Amps
4.
A 20 kg bike accelerates at 10 m/s2.  what was the force
a)
25 Newtons
b)
20 Newtons
c)
200 Newtons
d)
10 Newtons
5.
If a 10 kilogram object accelerates suddenly at 15 m/s^2, how much force was applied to the object?
a)
150 Newtons
b)
15 Newtons
c)
150 kilograms
d)
100 kilograms
6.
If an object was accelerating at 10 m/s^2, and a force of 10 newtons was required to accelerate it, what was the object's mass?
a)
1 kilogram
b)
10 kilograms
c)
2 kilograms
d)
5 kilograms
7.
If a force of 26 N is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, which ball will have the greater acceleration?  (F=ma)
a)
The one with a mass of .78 kg will have the greatest acceleration.
b)
The one with a mass of .52 kg will have the greatest acceleration.
c)
They will both accelerate at the same rate.
8.
If there are two forces going in the same direction how would you find the net force?
a)
Subtract
b)
Add
c)
Neither
d)
Multiply
9.
With unbalanced forces, the object will move in the direction of the _______ force.
a)
larger 
b)
smaller 
c)
equal 
10.
Forces that have a net force of zero ( the object is still).
a)
Balanced force
b)
Unbalanced force
11.
Calculate the net force shown in the  diagram?
a)
0N
b)
400 N
c)
600 N
d)
800 N
12.
Look at the diagram. What would be the direction of the motion ?
a)
movement to the left
b)
movement to the right
c)
no movement
13.

If there are two forces going in the opposite direction how would you find the net force?

a)

Subtract

b)

Add

c)

Neither

d)

Multiply

14.

What is the net force in this example?

a)

200 N

b)

125 N

c)

50 N

d)

75 N

15.

Which way is the object moving?

a)

it's either not moving or moving at a constant speed due to balanced forces

b)

to the right

c)

to the bottom

d)

up

16.

The coffee cup in the picture is at rest on the table. What is true about the Normal force?

a)

The normal force is exactly 15

b)

The normal force is less than 15

c)

The normal force is more than 15

d)

The normal force is -10

17.

What is the NET FORCE of this diagram?

a)

17 N, right

b)

17 N, left

c)

23 N, right

d)

12 N, up

18.

Which diagram best shows person pushing a couch (accelerating) across the floor?

a)
b)
c)
d)
19.
What is the net force
a)
10 N
b)
0 N
c)
25 N
d)
1 N
20.

At which point does the ball have the greatest gravitational potential energy (GPE)?

a)

A

b)

G

c)

D

d)

C

e)

G

21.

Where would this tossed baseball have the greatest amount of kinetic energy?

a)

point W

b)

point X

c)

point y

d)

point z

22.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
23.

Where is the kinetic energy the greatest?

a)

A

b)

B

c)

C

d)

D

24.

Which items would have this energy transformation: mechanical energy -> electrical energy?

a)

turning on a flashlight

b)

nuclear power plant

c)

wind turbine turning

d)

tanning bed

25.

What type of potential energy does a match have?

a)

thermal energy

b)

light energy

c)

chemical energy

d)

electrical energy

26.
Which answer would best fit this energy transformation:
chemical energy -> electrical, light and thermal energy
a)
turning on a flashlight
b)
nuclear power plant
c)
digesting an apple
d)
tanning bed
27.
Which object changes:
 chemical energy -> heat, light and sound
a)
blender
b)
firecracker
c)
light bulb
d)
apple
28.
Wind turbines and windmills convert what energy to another?
a)
Mechanical to electric
b)
Gravitational potential to electric
c)
Mechanical to thermal
d)
Thermal to sound
29.
On a cold winter day, Delia puts logs into a fireplace. Then she strikes a match and sets the logs on fire. As the fire burns, which two forms of energy are released?
a)
Radiant and Thermal
b)
Chemical and Radiant
c)
Thermal and Electrical
d)
Electrical and Chemical
30.

A group of friends gather around a fire to stay warm.

a)

conduction

b)

convection

c)

radiation

31.
The type of heat transfer that happens through direct contact of molecules or particles with each other is ___________________.
a)
Convection
b)
Conduction
c)
Radiation
d)
insulation.
32.

Heat from the sun warming a swimming pool

a)

Conduction

b)

Convection

c)

Radiation

33.

Which of the following devices transforms electrical energy into mechanical energy?

a)

An e-reader

b)

a fan

c)

a manual pencil sharpener

d)

ipod

34.

the tendency of an object to resist a change in its motion

a)

acceleration

b)

inertia

c)

mass

d)

frame of reference

35.
Short sound waves are...
a)
high pitched
b)
low pitched
c)
medium pitched
36.
When the car moves AWAY from you, its horn seems...
a)
Low pitched
b)
High pitched
c)
Normal
37.
When an ambulance move TOWARD you it sounds ________ pitched. 
a)
high
b)
low
c)
medium
38.

The pitch of a sound wave relates to the wave's _________________.

a)

Amplitude

b)

Frequency

c)

Wavelength

d)

Period

39.

What happens to the speed of light as it exits the air and enters a glass of water?

a)

It speeds up

b)

It remains constant

c)

It slows down

d)

It first slows down and then speeds up

40.

Which of the following statements about how light waves travel is correct?

a)

light waves travel the fastest through liquids and slowest through the air

b)

light waves travel faster through solids than through air

c)

light waves travel the fastest through solids and slowest through liquids

d)

light waves travel faster through the air than through solids

41.

Sound waves travel as ________ waves.

a)

Transverse

b)

Longitudinal

c)

Surface

42.

In which of these types of media will sound travel fastest?

a)

Solid

b)

Liquid

c)

Gas

43.

Sound waves CANNOT travel through which of these:

a)

Solid

b)

Liquid

c)

Outer space

d)

Gas

44.

The _______ of a wave increases with increased energy.

a)

Wave length

b)

Amplitude

45.
This is an example of a _______ circuit
a)
open
b)
series
c)
parallel
d)
square
46.
This is an example of a ______ circuit
a)
Series
b)
Parallel
c)
Open
d)
Dihexihedral
47.
A series circuit has how many pathways for the electrons to flow?
a)
Two
b)
One
c)
Many
d)
Zero
48.
What will happen if one light bulb is removed from this circuit?
a)
The other bulbs will go out.
b)
The other bulbs will stay on
c)
The other bulbs will get dimmer.
d)
The battery will become stronger.
49.
a)
Series circuit - Bulbs are lit
b)
Series circuit - Bulbs are off
c)
Parallel circuit - Bulbs are lit
d)
Parallel circuit - Bulbs are off
50.
This circuit does not work because…
a)
the bulbs are not connected properly
b)
two cells are not powerful enough
c)
there is a break in the circuit
d)
the cells are facing each other
51.

The greater the frequency, the ________ energy carried by the wave.

a)

more

b)

less

52.

A wave with a large wavelength will have a ______ frequency and _____ energy

a)

high, low

b)

high, high

c)

low, high

d)

low, low

53.
What is the lowest point on a wave?
a)
amplitude
b)
peak
c)
trough
d)
wavelength
54.
High frequency waves have _________ wavelength.
a)
varying
b)
high
c)
the same
d)
low
55.

Which wave in the diagram has the lowest frequency?

a)

1

b)

2

c)

3

d)

4

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