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WorksheetsFinal Review
Total questions: 60
Worksheet time: 49mins
The number of waves that pass a given point in one second is _____.
frequency
period
longitudinal
transverse wave
When a wave strikes an object and bounces off.
medium
refraction
reflection
interference
A wave carries...
energy only
matter only
the matter carries the energy
neither
The SI units for frequency are _____________.
hertz
seconds
m/s
m
A positive and negative charge __________ each other.
attract
repel
cancel
invalidate
In one second, eight waves pass a given point, What is the wave's frequency?
0.125 m
0.125 Hz
8 m
8 Hz
As the frequency of an electromagnetic wave increases, what does it wavelength do?
decreases
increases
stays the same
stretches
If the frequency of a wave is doubled, what happens to the wavelength of the wave?
the wavelength doubles
the wavelength is stopped
the wavelength remains the same
the wavelength is decreased by half
Which is the best explanation for an apple to appear red?
The apple absorbs red light.
The apple reflects red light.
The apple reflects all colors except red.
The apple is transparent to all colors of light except red.
The image shown is demonstrating SONAR technology to detect objects underwater. Which wave behavior is used by SONAR?
Refraction of sound waves
Interference of sound waves
Diffraction of sound wave
Reflection of sound waves
When you see the color black ___.
All light is being absorbed
Black is being absorbed
Black is being reflected
All light is being reflected.
Choose the statement that best describes what is represented by the image.
Long wavelengths are able to generate far more power than are short wavelengths.
Long wavelengths diffract around object more easily than do short wavelengths.
Long wavelengths travel more slowly than short wavelengths.
Long wavelengths have a greater frequency than short wavelengths
A student is studying how sound travels through a solid medium by timing the movement of sound through a boulder. Each trial records data when the boulder is at different temperatures. Using the information on the chart, how fast will sound move through the boulder when it reaches 20C?
569 m/s
570 m/s
571 m/s
572 m/s
Which diagram demonstrates constructive interference? The initial waves are given to you in Figure 1. The resulting image is drawn in Figure 2.
Which technological device is correctly paired with the electromagnetic wave?
X- rays are used in radiation therapy
Radio waves are used in radars
Gamma rays are used in X-ray machines
Infrared are used in CD-ROMs
Which pair of magnets would result from cutting this magnet in half?
The diagram shows the magnetic field surrounding a bar magnet. The closer together the lines of force, the stronger the magnetic field. According to the diagram, where is the magnetic field strongest?
in the center of the magnet
around the north pole
around the south pole
around both poles
Which of the following might make the spoons in the image below repel each other?
A is negatively charged and B is not charged at all
A is positively charged and B is negatively charged.
Both A and B are negatively charged.
Neither spoon A nor B is electrically charged.
A student connects three identical bulbs in parallel to a dry cell as shown. What happens when the student removes one of the light bulbs from its socket?
The remaining bulbs will stay lit, but one will be brighter and one will be less bright.
The remaining bulbs will stay lit, but one will be less bright and one will be the same brightness.
All of the lightbulbs will go out.
The remaining bulbs will stay lit and be equally bright.
Which of the following would make this a better-designed experiment?
using a different size battery for each electromagnet
using a different number of batteries for each electromagnet
using the same number of turns of wire for each electromagnet
inserting an ammeter in each circuit between the battery and the nails.
At which point is potential energy greatest?
W
X
Y
Z
At which point is kinetic energy greatest?
W
X
Y
Z
A 5 kg cat is sitting on a bookshelf 2 meters above the ground. How much gravitational potential energy does the cat have?
10 Joules
49 Joules
98 Joules
19.6 Joules
At which point does the roller coaster car have the least kinetic energy?
W
X
Y
Z
Which of the following situations is incorrect in relation to conservation of energy?
A hockey puck sliding freely on level ice increases in speed until it hits the net
The height a ball bounces decreases with each subsequent bounce.
A child playing on a swing moves faster at the bottom of the swing's path.
A ball dropped from the top of a building increases in speed until it hits the ground.
Energy can be transformed during changes of state describes the _____.
law of conservation of physical change
law of conservation of chemical change
law of conservation of energy
law of conservation of Thanos
Solar cells convert ___________.
energy from the wind to electrical energy
energy from moving water to electrical energy
nuclear energy to electrical energy
light energy to electrical energy.
Hydroelectric dams, windmill turbine plants, and solar cells
___________.
are major sources of energy used to produce electricity
all contribute significantly to air pollution
use renewable resources to produce electricity
use nonrenewable resources to produce electricity
__________ waste is any byproduct that results when radioactive materials are used.
Chemical
Nuclear
Potential
Electrical
Hydroelectricity uses ______________ to produce electricity.
moving water
wind
biomass
hot spring waters
Which energy source best describes the stored energy in a battery?
Chemical
Nuclear
Kinetic
Gravitational Potential
Select two disadvantages to using nuclear energy rather than fossil fuels. (Select two)
Nuclear energy does not produce any air pollution.
Nuclear power plants require less space because the power plant is compact.
There is no long-term storage solution for radioactive wastes produced by nuclear energy.
Nuclear energy is a nonrenewable resource.
Select two advantages to using nuclear energy rather than fossil fuels. (Select two)
A small amount of nuclear energy provides a larger amount of fuel supply.
Using nuclear energy produces highly radioactive wastes.
Using nuclear energy can result in catastrophic events like Chernobyl.
Using nuclear energy, generates less pollutants than fossil fuels.
The specific heat of a substance is defined as the amount of energy required to raise the temperature of 1 kg of a substance by 1 Kelvin. Using the graph, which statement is a reasonable hypothesis?
Metals require more energy than nonmetals to raise their temperature.
Water requires the least amount of energy to raise its temperature.
Lead requires more energy than ice to raise its temperature.
Metals require less energy than nonmetals to raise their temperature.
The inside of a car when it's been sitting under the sun on a hot summer day is an example of
conduction
convection
radiation
insulation
A blacktop parking lot getting warm on a summer day is an example of
radiation
convection
insulation
conduction
Which best explains how a car driving around a race track at a constant speed is considered accelerating?
None of these. The car can't accelerate at constant speed.
Even at constant speed, the car can change directions.
Even at a constant speed, the car can speed up.
Even at a constant speed, the car can slow down.
Determine the velocity of an object that travels 100 km North in 2 hours.
50 m/s
50 m/s North
50 km/h
50 km/h North
If you traveled a distance of 200 km in 4 hour, what would be your average speed?
80 km/h
800 km/h
50 m/s
50 km/h
If the same force is applied to each object, which one will have the least acceleration?
car = 3,000 kg
bowling ball = 7 kg
bus = 18,000 kg
soccer ball = 0.43 kg
If the same force is applied to each object, which one will have the greatest acceleration?
car = 3,000 kg
bowling ball = 7 kg
bus = 18,000 kg
soccer ball = 0.43 kg
This is the force of gravity pulling on an object's mass.
acceleration
weight
mass
distance
Two different metal objects, one 42 kg and 15 kg, fall freely from the top of a building. If friction is ignored, the objects will have the same __________ 10 meters above the ground.
kinetic energy
potential energy
acceleration
momentum
Find the average acceleration of an object moving from 5.0 m/s to 10.0 m/s over 10 seconds.
1 m/s2
0.5 m/s2
2 m/s2
0.3 m/s2
Find the average acceleration of an object moving from 2.0 m/s to 10.0 m/s over 4 seconds.
2.5 m/s2
0.5 m/s2
8 m/s2
2 m/s2
Which of the following scenarios represents balanced forces acting on an object?
A BMX biker changing speeds from 85 to 90 miles per hour.
An apple falling down a tree.
A car traveling at a constant speed of 70 miles per hour.
A runner slowing down after she crosses the finish line
Use the graph to determine the speed of the object during the first 5 seconds.
15 km/h
15 m/s
3 km/h
3 m/s
Which of the following items has the greatest inertia?
car = 3,000 kg
bus = 18,000 kg
bowling ball = 7 kg
soccer ball = 0.43 kg
An object's tendency to resist change is known as __________.
mass
matter
inertia
momentum
Which of the following items has the least inertia?
car = 3,000 kg
bus = 18,000 kg
bowling ball = 7 kg
soccer ball = 0.43 kg
While putting out a fire, a firefighter feels the force of the hose pushing back on him. What is the best explanation for this?
Since the hose is at rest, it stays at rest.
The hose material is elastic and flexible.
The escaping water exerts an equal but opposite force.
The force exerted equals the mass times its acceleration.
Which of the following scenarios would result in the least momentum?
A 0.5 kg tennis ball moving at 60 m/s.
A 7.0 kg bowling ball moving at 10 m/s.
A 1.0 kg baseball moving at 100 m/s
A 0.7 kg golf ball traveling at 30 m/s.
Which of the following scenarios would result in the greatest momentum?
A 0.5 kg tennis ball moving at 60 m/s.
A 7.0 kg bowling ball moving at 10 m/s.
A 1.0 kg baseball moving at 100 m/s
A 0.7 kg golf ball traveling at 30 m/s.
According to the image, which statement best describes what happens when the two astronauts collide in space?
Their forces increase.
Their velocities increase.
Their momentum increases.
Their momentum is conserved.
The free-body diagram below shows the relative magnitudes and directions of all the forces acting on an object moving horizontally in an easterly direction. Choose the correct statement describing the object's kinetic energy.
The kinetic energy increases.
The kinetic energy decreases..
The kinetic energy remains constant.
The kinetic energy is zero.
True or False. The gases exerted on a rocket, which is caused by the rocket's burning fuel, pushes the rocket forward into outer space.
False
True
A 2 kg object is sitting on a table 2 meters above the ground. How much gravitational potential energy does the cat have?
384.2 Joules
39.2 Joules
19.6 Joules
4 Joules
