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Physical Science - Midterm Review

Total questions: 86

Worksheet time: 53mins

Name
Class
Date
1.

What is the definition of SPEED?

a)

A measure of the speed in a given direction

b)

How fast an object is going with respect to an object

2.

What is the definition of VELOCITY?

a)

A measure of the speed in a given direction

b)

How fast an object is going with respect to an object

3.

What is the formula for VELOCITY?

a)

Formula = distance/ time

b)

Formula = distance/time; directions

4.

What is the formula for SPEED?

a)

Formula = distance/ time

b)

Formula = distance/time; directions

5.

Calculate the speed.

Bob travels 300 km in 10 hrs towards the store.

(a)  

6.

Calculate the speed.

Ashley swims 50 m in 10 seconds.

(a)  

7.

Acceleration is _____.

a)

the decrease of velocity.

b)

the increase of velocity over a period of time.

8.

Deceleration is _____.

a)

the decrease of velocity.

b)

the increase of velocity over a period of time.

9.

What is the formula for ACCELERATION?

a)

distance/ time

b)

distance/time; directions

c)

a = vf - vi / t

10.

True or False.

A change in acceleration is caused by change in speed and direction

a)

True

b)

False

11.

Calculate the acceleration.

A train traveling 20 meters per second takes 10 seconds to stop.

(a)  

12.

Calculate the acceleration.

A boy gains a speed of 5 m/s after running for 20 seconds.

(a)  

13.

Newton's First Law of Motion states that ______________.

a)

For every action there is an equal and opposite reaction. Forces are found in pairs.

b)

An object at rest stays at rest, and an object in motion stays in motion unless acted on by unbalanced force.

c)

F = ma

14.

Newton's Third Law of Motion states that ______________.

a)

For every action there is an equal and opposite reaction. Forces are found in pairs.

b)

An object at rest stays at rest, and an object in motion stays in motion unless acted on by unbalanced force.

c)

F = ma

15.

Newton's Second Law of Motion states that ______________.

a)

For every action there is an equal and opposite reaction. Forces are found in pairs.

b)

An object at rest stays at rest, and an object in motion stays in motion unless acted on by unbalanced force.

c)

F = ma

16.

How much force is required to move the car?

(a)  

17.

When using the W = mg equation, and there is no gravity, what is the gravity?

(a)  

18.

What is the definition of GRAVITY?

a)

the measurement of the force of gravity on that object.

b)

the force that pulls objects toward the Earth. It is affected by mass and distance.

19.

What is the definition of WEIGHT?

a)

the measurement of the force of gravity on that object.

b)

the force that pulls objects toward the Earth. It is affected by mass and distance.

20.

What is the definition of MASS?

a)

the measurement of the force of gravity on that object.

b)

the force that pulls objects toward the Earth. It is affected by mass and distance.

c)

measure of how much matter an object has.

21.

What is the difference between mass and weight?

a)

Weight is constant, but the mass may change.

b)

Mass is constant, but the weight may change.

c)

Weight is determined by how many atoms make up an object

d)

Weight and mass are the same.

22.

Machines are devices that make work (a)   .

23.

True or False.

Compound machines require more than one movement to do work.

a)

True

b)

False

24.

What is the formula for WORK?

a)

W = F • d

b)

Work output/ Work input x 100%

c)

Resistance force (Fr) / Effort force (Fe)

d)

Input distance (slope) / Output distance (height)

25.

What is the formula for EFFICIENCY?

a)

W = F • d

b)

Work output/ Work input x 100%

c)

Resistance force (Fr) / Effort force (Fe)

d)

Input distance (slope) / Output distance (height)

26.

What is the formula for FORCE (MECHANICAL ADAVANTAGE)?

a)

W = F • d

b)

Work output/ Work input x 100%

c)

Resistance force (Fr) / Effort force (Fe)

d)

Input distance (slope) / Output distance (height)

27.

What is the formula for DISTANCE (MECHANICAL ADAVANTAGE)?

a)

W = F • d

b)

Work output/ Work input x 100%

c)

Resistance force (Fr) / Effort force (Fe)

d)

Input distance (slope) / Output distance (height)

28.



(a)  

29.



(a)  

30.



(a)  

31.



(a)  

32.



(a)  

33.



(a)  

34.



(a)  

35.

What is the energy transformation?

Consuming food

(a)  

36.

What is the energy transformation?

Car engine

(a)  

37.

What is the energy transformation?

Light bulb

(a)  

38.

What is the energy transformation?

Windmills

(a)  

39.

What is the energy transformation?

Solar panels

(a)  

40.

Wind currents.

Heating and cooling system in our homes and buildings.

a)

Conduction

b)

Convection

c)

Radiation

41.

Burning your hand by touching a hot pan.

a)

Conduction

b)

Convection

c)

Radiation

42.

The hood of a car getting hot on a summer day.

a)

Conduction

b)

Convection

c)

Radiation

43.

Material that does not allow heat/charge to pass easily.


Examples: wood, plastic, rubber, air, fiberglass, fleece, thermal underwear


Poor conductor

a)

Insulator

b)

Conductor

44.

Material that allows heat/charge to pass easily.


Examples: Metals such as copper, silver, gold, aluminum


Poor insulator

a)

Insulator

b)

Conductor

45.

The amount of energy needed to raise 1kg of a substance by 1 K


Q = cmΔt

(a)  

46.

A (a)   is a disturbance that transfers energy

through matter or through space.

47.

Waves that do not require a medium and can travel through space are called _________.

a)

Mechanical Waves

b)

Electromagnetic Waves

48.

Waves that must travel through matter are called _________.

a)

Mechanical Waves

b)

Electromagnetic Waves

49.

Sound waves is an example of a ____________.

a)

Mechanical Wave

b)

Electromagnetic Wave

50.

Light waves is an example of a ____________.

a)

Mechanical Wave

b)

Electromagnetic Wave

51.

What type of wave is described below?

‣ requires a medium: solid, liquid, gas

‣ sound waves require air (gas)

‣ water requires water (liquid)

‣ earthquake (seismic waves) requires earth (solid)

a)

Electromagnetic

b)

Mechanical

52.

What type of wave is described below?

‣ does not require a medium/can travel in a vacuum

‣ Radio waves

‣ Infrared Light

‣ Gamma rays

a)

Electromagnetic

b)

Mechanical

53.

Why is sound able to travel faster through a solid than a gas?

a)

Sound does not travel faster through a solid than a gas.

b)

Gas molecules are packed tightly.

c)

Solid molecules are packed tightly.

d)

Gas molecules move slowly.

54.

Sound travels the slowest through

a)

space

b)

gas

c)

solid/metals

d)

liquid

55.

Sound travels the FASTEST through _____________, SLOWER through ______________ and SLOWEST through _________________.

a)

liquids, solids, gases

b)

solids, gases, liquids

c)

solids, liquids, gases

d)

gases, liquids, solids

56.

What do waves carry and transfer?

a)

Nothing

b)

Only Sound

c)

Only sunlight

d)

Energy

57.

A medium is _________.

a)

a sound wave

b)

a light beam

c)

a olid, liquid or gas.

58.

The bottom part of the wave is called trough.

a)

True

b)

False

59.

_________________________ is the distance between a point on one wave and the identical point of the next wave.

a)

Amplitude

b)

Frequency

c)

Crest

d)

Wavelength

60.

Which wave has the greatest wavelength?

a)

Red Wave

b)

Orange Wave

c)

Green Wave

d)

Purple Wave

61.

Which wave has the lowest wavelength?

a)

Red

b)

Violet

c)

Orange

d)

Green

62.

The height of a wave is

a)

Wavelength

b)

Amplitude

c)

Equilibrium

d)

Magnitude

63.

The height of a wave is

a)

Wavelength

b)

Amplitude

c)

Equilibrium

d)

Magnitude

64.

True or False.

The higher the frequency, the more energy a wave has.

a)

True

b)

False

65.

True or False.

Waves with short wavelengths have a high frequency.

Waves with long wavelengths have a low frequency.

a)

True

b)

False

66.

What is the formula for wavespeed?

a)

wavelength x frequency

b)

total time/total # of waves

c)

distance/time

d)

total # of wave/total time

67.

What happens to the wavelength as the frequency decreases?

(a)  

68.

Which wave has more energy? Why?

a)

Wave A has more energy because the time is longer.

b)

Wave A has more energy because there is higher frequency.

c)

Wave B has more energy because the time is longer.

d)

Wave B has more energy because there is higher frequency.

69.
A wave with a large wavelength will have a ______ frequency and _____ energy
a)
high, low
b)
high, high
c)
low, high
d)
low, low
70.
Select the correct order of waves on the EMS from the longest wavelength to the shortest wavelength
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
71.
Which has the LONGEST wavelength and, therefore, the lowest frequency/energy
a)
Gamma Rays
b)
Radio Waves
c)
Visible Light
d)
Infrared rays
72.
Which has the SHORTEST wavelength and, therefore, the highest frequency/most energy
a)
Radio waves
b)
Ultraviolet Rays
c)
Gamma Rays
d)
X-rays
73.
Which section of the spectrum is the ONLY one we can see?
a)
X-rays
b)
Visible Light
c)
Gamma Rays
d)
Ultraviolet Rays
74.
How are electromagnetic waves different from other waves? 
a)
They have very short wavelengths 
b)
They transmit energy instead of matter 
c)
They can travel through empty space
d)
They can change direction by reflection 
75.
Which of the following electromagnetic waves has the lowest energy?
a)
gamma ray
b)
infrared wave
c)
visible light wave
d)
microwave
76.
High frequency waves have _________ wavelengths.
a)
varying
b)
long
c)
the same
d)
short
77.
Which type of waves are used in broadcasting?
a)
radio waves
b)
infrared rays
c)
x-rays
78.
Which electromagnetic waves allow us to diagnose & treat cancer?
a)
Gamma rays
b)
X-rays
c)
Ultraviolet rays
79.
Which of the following has frequencies higher than ultraviolet rays?
a)
visible light
b)
infrared rays
c)
x-rays
80.
Which electromagnetic waves help doctors detect broken bones inside your body?
a)
gamma rays
b)
x-rays
c)
ultraviolet rays
81.
Which of the following lists the electromagnetic waves in order of increasing wavelength?
a)
X-rays, visible light, radio waves
b)
gamma rays, microwaves, UV rays
c)
infrared rays, radio waves, x-rays
82.
Light waves are mechanical waves.
a)
True
b)
False
83.
When a wave bends or spreads past a medium, this is referred to as
a)
Reflection
b)
Refraction
c)
Radiation
d)
Diffraction
84.
Which of the following is the bending of a wave, which changes its speed.
a)
Reflection
b)
Diffraction
c)
Refraction
d)
Frequency
85.
The combination of two waves to form a larger amplitude is what type of interference?
a)
Constructive
b)
Destructive
c)
Diffractive
d)
Refractive
86.
Waves can meet and form a smaller amplitude.  If this occurs, it is called
a)
Constructive
b)
Destructive
c)
Diffractive
d)
Refractive

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