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Energy
Exam One
Part One: Meets Standard
Multiple Choice (2pt/ question): Choose the best answer.
1. Which type of energy can move through space as a wave?
 Sound
 Mechanical
 Electrical
 Electromagnetic
 Chemical
2. Which



type of energy is contained in the nucleus of an atom?
Chemical
 Electromagnetic
Atomic
 Nuclear
Kinetic
3. Which



type of energy is the energy of movement?
Thermal
Chemical
Mechanical
4. This type of energy is stored in chemical bonds:
 Nuclear
 Thermal
 Chemical


Nuclear
Electromagnetic


Kinetic
Electromagnetic
5. Which of the following sentences best describes energy?
 Energy can take many forms but it always has the ability move matter.
 Energy is used to heat houses and drive cars. It can be produced by burning
fossil fuels.
 Energy is produced by photosynthesizing plants and is lost once the plants
are eaten.
 Energy is what is trapped inside the nucleus of every atom.
 Energy is created by moving objects higher off the ground.
6. When
a.
b.
c.
d.
e.
a rocket ship takes off the following energy conversion takes place:
Kinetic energy turns into thermal energy.
Nuclear energy turns into electromagnetic energy.
Mechanical energy turns into chemical energy.
Chemical energy turns into mechanical energy.
Rocket energy turns into space energy.
7. Which





of the following energy conversions occurs in a hydroelectric dam?
Chemical energy turns into kinetic energy
Mechanical energy turns into electrical energy
Electrical energy turns into kinetic energy
Thermal energy turns into electrical energy
Mechanical energy turns into kinetic energy.
8. Which of the following statements is true about the Law of Conservation of Energy?
 Energy can be created
 Energy can be destroyed
 Energy can be destroyed but not created
 Energy can not be created or destroyed
 Energy can be created but not destroyed
9. Which of the following is not a type of mechanical energy?
 A sound wave
 Potential energy of a rock on a high cliff
 The energy inside a granola bar
 An ocean wave
 A runaway truck rolling down a hill
10. In the diagram above, where is the kinetic energy of the car the highest?
 1
 2
 3
 4
11. In the diagram above, where is the potential energy of the car the highest?
 1
 2
 3
 4
12. When



a wave moves from point A to point B, what is transferred to point B?
particles of the medium
 troughs
energy
 wavelength
amplitude
13. Which



type of energy results from the movement of particles in a substance?
chemical energy
 nuclear energy
potential energy
 electromagnetic energy
thermal energy
14. Which of the following statements is correct?
 The water particles in an ice cube vibrate faster than the particles in liquid
water.
 When heat is added, particles in liquid water move faster and faster until
they solidify into ice.
 Particles in liquid water are not as close together as particles of water
vapor.
 Particles in water vapor have more kinetic energy than particles in liquid
water.
 Water isn’t made of particles, it’s made of water.
15. Which of the following statements best describes electrical energy?
 Waves of electrical and magnetic energy moving together through space at
light speed.
 A form of energy resulting from the flow of charged particles, such as
electrons or protons.
 Energy stored inside the nuclei of atoms.
 The vibration of particles in a substance.
 Energy associated with the motion and position of objects.
16. How can stored nuclear energy be released from a substance?
 Split the nuclei of the atoms in the substance
 Burn the substance
 Break the chemical bonds in the substance
 Heat the substance
 Pour acid on the substance
17. Which





of the following statements best describes nuclear energy?
Energy of electrons flying at light speed around the nucleus of an atom.
Energy of particles as they vibrate faster and faster when heated.
Energy stored in flammable substances like wood. Released during a forest
fire.
Energy that can be released by changing the number of protons and neutrons
in an atom.
Energy associated with the velocity of an object.
18. Which





of the following statements is true about electromagnetic waves?
All have the same wavelength
Do not carry energy
Can travel through empty space
All have the same frequency
All travel at different speeds
19. This is the only type of EM radiation that we can see.
 Radio

 Micro

 Infrared
Visible
Ultraviolet
20. Which





Visible
Ultraviolet
21. How fast do EM waves move?
 The speed of sound
 Really frikin’ fast
 3.00 x 105 m/s


3.00 x 108 km/s
3.00 x 108 m/s
22. What is the strongest form of EM radiation?
 Gamma
 X-ray
 Ultraviolet


Infrared
Microwave
type of EM radiation has the most energy?
Radio
Micro
Infrared
23. Which of the following statements best describes chemical energy?
 Energy stored as a result of shape or height, can be released by falling.
 Waves of electrical and magnetic energy moving together through space at
light speed.
 A form of energy resulting from the flow of charged particles, such as
electrons or protons.
 Energy stored in the chemical bonds between atoms.
 The vibration of particles in a substance.
True or False (2pt/ question):
24. X-rays have a smaller wavelength than any other EM rays _____
25. Mechanical waves can move through a vacuum _____
26. Kinetic energy is a form of chemical energy _____
27. Chemical energy is stored in chemical bonds _____
28. At 40 mph a cement truck has more kinetic energy than a shopping cart _____
29. Gasoline contains thermal energy _____
30. All EM radiation moves at the same speed _____
Short Answer: (5 Points per Question)
31. The United States gets approximately 45% of its electricity from burning coal.
 What are the pro’s and con’s surrounding this method of electricity
generation?
 How could we meet our energy needs without coal? Provide realistic
explanations for your answer.
32. A corn plant uses the sun’s energy to create sugar. Corn Flakes are then eaten by a
student who tosses a basketball and shouts ‘heads up!’
 Identify three energy types in the scenario above.
 Identify two examples of one form of energy turning into another form of
energy.
Part Two: Exceeds Standard
Multiple Choice (2 point/ question): Choose the best answer.
1. When plants photosynthesize they use the sun’s energy to make sugar. Which of the
following energy conversions occurs when a plant photosynthesizes?
a. Mechanical energy turns into thermal energy, which turns into chemical
energy
b. Thermal energy turns into electrical energy, which turns into kinetic energy
c. Nuclear energy turns into electromagnetic energy, which turns into chemical
energy
d. Electromagnetic energy turns into thermal energy, which turns into
electrical energy
e. Kinetic energy turns into potential energy, which turns into mechanical
energy
2. Which
a.
b.
c.
d.
e.
has the most kinetic energy?
A 270 kg gorilla running at 5 m/s
A 500 kg car driving at 5 m/s
A 100 kg person running at 5 m/s
A 25 kg badger running to scratch your face off at 5 m/s
A 500 kg car driving at 10 m/s
3. Truck one is speeding down the freeway. Another identical truck (truck two) has
been heavily loaded so it had twice the total mass of truck one. Both trucks are
moving at the same velocity. What is true about the Kinetic energy of the second
truck?
a. Truck two has half the KE
b. Truck two has twice the KE
c. Truck two has 4 times the KE
d. Truck two has the same KE
4. An object is 5 meters from the ground. What pieces of information do you need to
determine the object’s potential energy?
a. The object’s velocity and mass.
b. The object’s mass and kinetic energy.
c. The acceleration of gravity and the object’s velocity.
d. The objects kinetic energy and its velocity.
e. The object’s mass and the acceleration of gravity.
5. A 67 kg rock is rolling down a mountain at 55 m/s. How much kinetic energy does it
have?
a. 122 Joules
b. 202,675 Joules
c. 101, 337 Joules
d. 36,113 Joules
e. 3,684 m/s2
6. Two earthquake waves travel through the ground. Both move at the same speed, but
wave A has a smaller wavelength than wave B. Which wave delivers more energy per
second?
a. Wave A has more energy
b. Wave B has more energy
c. Wave A and B have the same amount of energy
d. Wave C has more energy
e. We can’t determine which has more energy from this information.
7. Which
a.
b.
c.
d.
e.
of the following statements is correct?
Living things are powered by thermal energy from the sun.
Living things are powered by mechanical energy from food.
Living things are powered by electrical energy from the sun.
Living things are powered by chemical energy from food.
Living things are powered by electromagnetic energy from the food.
8. Which of the following statements about heat transfer is correct?
a. Convection happens between objects in direct physical contact.
b. An example of Radiation would be you open your door on a cold day and the
hot air in your house rushes out.
c. When an object cools through Conduction its thermal energy turns into
electromagnetic radiation.
d. When an object cools through Radiation it loses energy by giving off
infrared light.
e. Heat transfer occurs when thermal energy goes from a cold object into a
warmer object.
9. Which of the following statements about Einstein’s famous equation E = mc2 is
correct?
a. The amount of nuclear energy in a substance is related to its mass and its
height off of the ground.
b. The amount of chemical energy in a substance is related to the number of
chemical bonds within the substance.
c. Only light which travels at light speed has nuclear energy.
d. Matter and energy are mathematically equivalent.
e. Nuclear energy can be released by stripping electrons from an atom.
10. What is true about a sky-diver is halfway from the plane to the ground?
a. They have kinetic energy but no potential energy.
b. They have converted half of their potential energy into kinetic energy.
c. They have potential energy but no kinetic energy.
d. They have electrical energy but not mechanical energy.
e. They lose kinetic energy as they fall.
Short Answer: Use complete sentences to answer the following questions. Please show all
your work:
11. A 3 kilogram bowling ball is sitting at the top of a 2.0 meter high ramp. (8 points)
a. What is the bowling balls potential energy?
b. According to the law of conservation of energy, explain what the bowling
ball’s kinetic energy should be at the end of the ramp.
c. At the bottom of the ramp the velocity of the bowling ball is 6m/s. What is
the actual kinetic energy of the bowling ball?
d. Explain why the kinetic energy of the bowling ball does not equal the
potential energy of the bowling ball.