Physical Science - Energy Unit Quiz

26 Questions | By Vanrhoads | Last updated: Mar 21, 2022 | Total Attempts: 1445

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This is a quiz over Kinetic Energy and Potential Energy.

Questions and Answers

1.

A bowling ball and a ping pong ball are rolled down a hallway at identical velocities. Which one has the greater kinetic energy (KE)?
- A.
  
  The bowling ball has more KE
- B.
  
  The ping pong ball has more KE
- C.
  
  Both have the same KE
- D.
  
  Neither have any KE
2.

Felix the cat sits on a branch 20 feet above the ground. Felix's identical twin brother cat named Helix sits on a branch 10 feet above the ground. If the two cats have identical masses, which cat has greater potential energy (PE)?
- A.
  
  Helix has more PE
- B.
  
  Felix has more PE
- C.
  
  Both have the same PE
3.

Ironman and Wolverine enter the roller derby (a race on rollerblades). The superheros happen to have identical masses. However, Ironman is an expert rollerblader and Wolverine is a beginner, so Ironman's speed is four times faster than Wolverine's speed. How much greater is Ironman's kinetic energy (KE) than Woverine's KE?
- A.
  
  3 times greater
- B.
  
  4 times greater
- C.
  
  9 times as great
- D.
  
  16 times greater
- E.
  
  None of these
4.

Mickey carries her ipod up a ladder. Which has greater potential energy on the top rung of the ladder, Mickey or her ipod?
- A.
  
  Mickey
- B.
  
  The ipod
- C.
  
  They have the same potential energy
- D.
  
  Neither of them have any potential energy
5.

Alyssa's pet iguana is sitting on the windowsill of a two story building. If the windowsill is exactly 3.5 m above the ground, and the iguana has a mass of exactly 10 kg, what is its potential energy? (Remember, g=9.8 m/s² and PE = mgh.)
- A.
  
  34300 J
- B.
  
  35 J
- C.
  
  34.3 J
- D.
  
  343 J
6.

A 1-gallon can of paint is sitting on the top of a ladder, exactly 2 m above the ground. If its potential energy is 39.2 J, find its mass. (Use g = 9.8 m/s² and PE = mgh.)
- A.
  
  0.2 kg
- B.
  
  39.2 kg
- C.
  
  2 kg
- D.
  
  19.6 kg
7.

A baseball player wants to hit more homeruns. As his coach, you tell him he needs to hit the ball with more kinetic energy. He could either get a bat with twice as much mass or he could swing his current bat with twice as much velocity. Assuming his accuracy stays the same, which would help him hit the ball further?
- A.
  
  A more massive bat
- B.
  
  A faster swing
- C.
  
  Neither of these will make a difference
8.

The SI unit for energy is the
- A.
  
  Kilogram
- B.
  
  Newton
- C.
  
  Watt
- D.
  
  Joule
9.

Energy can change form from one type to another.
- A.
  
  True
- B.
  
  False
10.

Energy is defined as
- A.
  
  The ability to do work
- B.
  
  The ability to produce heat
- C.
  
  The ability to cause change
- D.
  
  All of the above
- E.
  
  None of the above
11.

Kinetic energy is defined as the energy of
- A.
  
  Electricity
- B.
  
  Storage
- C.
  
  Motion
- D.
  
  Heat
12.

Potential energy is the energy of
- A.
  
  Electricity
- B.
  
  Storage
- C.
  
  Heat
- D.
  
  Motion
13.

Thermal energy is the energy of
- A.
  
  Bonds between molecules
- B.
  
  Particles in motion
- C.
  
  Storage
- D.
  
  Electricity
14.

Amorette connects a battery to a motor and the motor starts spinning. This is an example of electrical energy being transformed into
- A.
  
  Kinetic energy
- B.
  
  Potential energy
- C.
  
  Nuclear energy
- D.
  
  Elastic energy
15.

Gabby connects a battery to a motor and the motor starts spinning. Then, she disconnects the battery from the motor. The disconnected battery is an example of what type of energy?
- A.
  
  Kinetic
- B.
  
  Potential
- C.
  
  Nuclear
- D.
  
  Solar
16.

Ms. Van Rhoads holds a book in the air. It is perfectly still. It has what type of energy?
- A.
  
  Potential
- B.
  
  Kinetic
- C.
  
  Nuclear
- D.
  
  Chemical
17.

Ms. Van Rhoads drops a book. While it is falling, what type of energy does it have?
- A.
  
  Potential
- B.
  
  Kinetic
- C.
  
  Radiant
- D.
  
  Electric
18.

Ms. Van Rhoads drops a book. When the book hits the ground, it makes a loud "thud" sound. Sound is really a form of _________ energy because it is the motion of air compressing and expanding.
- A.
  
  Potential
- B.
  
  Genetic
- C.
  
  Kinetic
- D.
  
  Radiant
19.

The difference between nuclear energy and chemical energy is that
- A.
  
  Nuclear energy is stored in the bonds between protons and neutrons in an atom but chemical energy involves the bonds between atoms
- B.
  
  Nuclear energy is stored in the bonds between atoms but chemical energy involves the bonds between protons and neutrons in an atom
- C.
  
  Both nuclear and chemical mean the same thing
- D.
  
  Nuclear energy is radiant but chemical energy is kinetic
20.

Your little brother is jumping on the bed. The mattress has springs inside. When he lands on the bed, he compresses the springs into tight coils. At that exact moment when the spring is completely compressed, what type of energy does it have?
- A.
  
  Kinetic
- B.
  
  Rotational
- C.
  
  Potential
- D.
  
  Radiant
21.

Your little brother is jumping on the bed. The mattress has springs inside. When he lands on the bed, he compresses the springs into tight coils. Then, the spring does what springs do -- it stretches back out and sends your little brother flying into the air. While the spring is in the process of stretching, what type of energy does it have?
- A.
  
  Magnetic
- B.
  
  Potential
- C.
  
  Radiant
- D.
  
  Kinetic
22.

A baseball is thrown at 24 m/sec. If it has a kinetic energy of 43.2 J, what is the mass of the baseball? KE = 1/2 mv² . Don't forget units!
23.

Natasha pitches a softball at a speed of 30 m/sec. If the ball has a mass of 0.18 kg, what is the kinetic energy of the ball as it crosses home plate? Include units! (KE = 1/2 mv² .)
24.

Work is a form of energy.
- A.
  
  True
- B.
  
  False
25.

At the beginning of each Science class, we find our pulses and breathe. We do this in order to
- A.
  
  Make contact with alien life forms in Ms. Goodwin's room
- B.
  
  Cut off our circulation so our hands will turn blue and fall off
- C.
  
  Tame our monkeys
- D.
  
  So we are ready to give CPR to ourselves, just in case

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