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physics top tips

Total questions: 64

Worksheet time: 54mins

Name
Class
Date
1.

Friction is a contact force that acts _______ to the surfaces in contact.

a)

parallel

b)

perpendicular

c)

equal

d)

at an acute angle

2.

When an object is moving, friction acts in the _______ direction as the motion.

a)

perpendicular

b)

same

c)

opposite

d)

precise

3.

The magnitude of the friction force depends on the force pushing the surfaces together.

a)

True

b)

False

4.

The type of friction that prevents an object from moving is called _______ friction.

a)

rolling

b)

fluid

c)

kinetic

d)

static

5.

A type of friction that occurs when air pushes against a moving object it to decelerate.

a)

surface area

b)

air resistance

c)

velocity

d)

gravity

6.

How would the absence of friction affect the motion of a marble on a long, straight path?

a)

The marble's speed would decrease.

b)

The marble's speed would remain constant.

c)

The marble's speed would increase.

d)

The marble would stop immediately.

7.

Polishing two surfaces in contact will reduce the friction between them.

a)

True

b)

False

8.

Which of the following is an example of rolling kinetic friction?

a)

A box sliding across the floor.

b)

A car skidding to a stop.

c)

A soccer player making a slide tackle.

d)

A bike being ridden on a road.

9.

The equation for the force of friction is _______.

a)

Ff = µFg

b)

Ff = µFN

c)

Ff = µFT

d)

Ff = µFs

10.

What affect would decreasing the normal force between two objects have on the force of friction?

a)

The force of friction would increase.

b)

The force of friction would decrease.

c)

The force of friction would remain the same.

d)

The force of friction would disappear completely.

11.

Which type of waves have vibrations that run perpendicular to the direction the wave travels?

a)

transverse

b)

longitudinal

12.

Which type of waves have vibrations that run parallel to the direction the wave travels?

a)

transverse

b)

longitudinal

13.

Examples of this type of waves include water waves, waves on a string/jump rope, and light waves.

a)

transverse

b)

longitudinal

14.

An example of this type of wave is a sound wave.

a)

transverse

b)

longitudinal

15.

Waves transfer _______.

a)

energy

b)

matter

c)

particles

16.

_______ is the length of a full cycle of a wave, from one crest to the next crest.

a)

Wavelength

b)

Frequency

c)

Amplitude

17.

The _______ is the highest point on a transverse wave.

a)

Crest

b)

Trough

c)

Wavelength

d)

Amplitude

18.

The _______ is the lowest point on a transverse wave.

a)

Wavelength

b)

Amplitude

c)

Trough

d)

Crest

19.

The _______ is the size or height of a wave, measured from the equilibrium to the crest or trough.

a)

Amplitude

b)

Wavelength

c)

Frequency

20.

The _______ of a wave is how many waves pass a given point every second.

a)

Frequency

b)

Wavelength

c)

Amplitude

21.

Frequency is measured in _______.

a)

Hertz (Hz)

b)

Meters per second

c)

Meters

d)

Newtons

22.

Frequency is how many waves pass a point in 1 second. If 100 waves pass a given point in 4 seconds, what is the wave's frequency?

a)

25 Hz

b)

100 Hz

c)

4 Hz

d)

400 Hz

23.

In a longitudinal wave, a ________ is an area where the particles are spread apart.

a)

rarefaction

b)

compression

c)

crest

d)

trough

24.

In a longitudinal wave, a ________ is an area where the particles are close together.

a)

rarefaction

b)

compression

c)

crest

d)

trough

25.

Examples of ________ waves include visible light, xrays, ultraviolet, and radio waves.

a)

transverse

b)

longitudinal

26.

The formula for _________ is λ = v/f.

a)

wavelength

b)

frequency

c)

period

27.

The formula for frequency is ____________.

a)

λ = v/f

b)

f=1/p

c)

p=1/f

d)

f=p/1

28.

The formula for period is __________.

a)

p=1/f

b)

p=f/1

c)

f=1/p

d)

λ = v/f

29.
Magnetism is generated by moving
a)
protons.
b)
electrons.
c)
neutrons.
d)
elements.
30.
What do the lines around this magnet represent?
a)
North Pole
b)
South Pole
c)
Magnetic Declination
d)
Magnetic Field
31.
As the distance between two magnets increases (they get farther apart), the force between them:
a)
Increases
b)
Decreases
c)
Stays the Same
32.
If you cut a magnet in half, what happens to the poles?
a)
One half gets the North Pole, the other half gets the South Pole
b)
Both halves get only a North Pole
c)
Both halves get only a South Pole
d)
Both halves get a North pole and a South Pole
33.
What is responsible for the Magnetic Field around Earth?
a)
The Earth's crust
b)
The Earth's molton iron core
c)
The Earth's mantel
d)
The Sun
34.
If the North Pole of a permanent magnet is placed next to a compass as seen in the picture, which direction will the needle move?
a)
Clockwise
b)
Counter-clockwise
c)
It will not move
d)
Need more information
35.
An electromagnet's poles may be reversed by:
a)
decreasing the voltage of the coil
b)
increasing the number of coils
c)
changing the direction of current flow
d)
altering the material used to make the coils
36.
Which direction is the North Pole of this electromagnet?
a)
Right
b)
Left
c)
Up
d)
Down
37.
In un-magnetized materials the domains are __________ aligned.
a)
super
b)
slightly
c)
randomly
d)
always
38.
Electric motors are devices that convert _____ energy into  _____ energy.
a)
electrical; mechanical
b)
mechanical; electrical
c)
chemical; potential
d)
mechanical; kinetic
39.
What kind of magnet can be turned on and off?
a)
refridgerator magnet
b)
electromagnet
c)
magnetite
d)
iron
40.
The strongest part of a magnet is...
a)
the bars.
b)
the force field.
c)
the poles. 
d)
the middle.
41.

If a glass plate is placed over a magnet and iron filings are sprinkled over the glass, a pattern will be visible. What does this pattern indicate?

a)

The magnetic field

b)

The electrostatic field

c)

The piezoelectric effect

d)

The chemical reaction of the magnet and the filings

42.

What causes magnetism?

a)

the sun

b)

moving neutrons

c)

moving charges

d)

friction

43.

How can a wire become magnetic?

a)

point it north

b)

add a resistor

c)

heat it up

d)

run a current through it

44.

What device takes in mechanical energy and produces electricity?

a)

motor

b)

generator

c)

electromagnet

d)

battery

45.
A wave with a large wavelength will have a ______ frequency and _____ energy
a)
high, low
b)
high, high
c)
low, high
d)
low, low
46.
Select the correct order of waves on the EMS 
a)
Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma
b)
Gamma, X-ray, Ultra, Vis, Infra, Micro, Radio
c)
Vis, Micro, Infra, Ultra, X-ray, Gamma, Radio
d)
Micro, Radio, Vis, Infra, Ultra, X-ray, Gamma
47.
Which has the LONGEST wavelength and, therefore, the lowest frequency/energy
a)
Gamma Rays
b)
Radio Waves
c)
Visible Light
d)
Infrared rays
48.
Which has the SHORTEST wavelength and, therefore, the highest frequency/most energy
a)
Radio waves
b)
Ultraviolet Rays
c)
Gamma Rays
d)
X-rays
49.
Which section of the spectrum is the ONLY one we can see?
a)
X-rays
b)
Visible Light
c)
Gamma Rays
d)
Ultraviolet Rays
50.
As the frequency of an electromagnetic wave increases, the amount of energy in that wave...
a)
increases.
b)
decreases.
c)
stays the same.
51.
The height of the wave is known as the _____________.
a)
amplitude
b)
crest
c)
trough
d)
wavelength
52.
The blue section of the wave is measuring _________________.
a)
wavelength
b)
crest
c)
trough
d)
amplitude 
53.
Light behaves like both a particle and a ______.
a)
Mass
b)
Wave
c)
Current
54.
What happens to the energy of a photon as the frequency of the wave increases? 
a)
The energy increases
b)
The energy decreases
c)
The energy stays the same 
55.

Which of the following has the shortest wavelength?

a)

microwaves

b)

UV rays

c)

Infrared

d)

the color blue

56.

Which of the following has the most energy?

a)

Red

b)

Blue

c)

Green

d)

Violet

57.

Which of the following has the most energy?

a)

X-rays

b)

The color green

c)

Microwaves

d)

ultraviolet

58.

Which of the following has the longest wavelength?

a)

Infrared

b)

The color Indigo

c)

gamma rays

d)

TV

59.

Which of the following has the least amount of energy?

a)

UV rays

b)

The color yellow

c)

infrared

d)

Gamma rays

60.

Which of the following has the shortest wavelength?

a)

Gamma rays

b)

The color blue

c)

AM radio

d)

Infrared

61.

Which of the following has the highest frequency?

a)

TV

b)

Microwaves

c)

the color indigo

d)

ultraviolet rays

62.

Which of the following would have the lowest frequency?

a)

infrared

b)

The color red

c)

X-rays

d)

TV

63.

Which of the following has the lowest energy?

a)

The color yellow

b)

The color blue

c)

The color indigo

d)

The color orange

64.

Which of the following has the lowest frequency?

a)

The color blue

b)

The color green

c)

The color yellow

d)

The color violet

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