Kinetic & Potential Energy
This quiz covers content that was presented in the Kinetic & Potential Energy section of Unit 1: Matter & Energy. You will have 30 minutes to complete this quiz. Take your time.
Questions and Answers
- 1.
The ability to do work or cause change is...
- A.
Work
- B.
Gravity
- C.
Energy
Correct Answer
C. EnergyExplanation
Energy is the correct answer because it is the capacity or ability to do work or cause change. Energy can exist in various forms such as kinetic energy (energy of motion), potential energy (stored energy), thermal energy (heat energy), and many others. It is a fundamental concept in physics and is essential for any type of work or change to occur in the universe.Rate this question:
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- 2.
The energy an object has while in motion is...
- A.
Elastic potential energy
- B.
Gravitational potential energy
- C.
Kinetic energy
Correct Answer
C. Kinetic energyExplanation
Kinetic energy is the energy possessed by an object due to its motion. It depends on the mass of the object and its velocity. The faster an object moves or the heavier it is, the more kinetic energy it has. In contrast, elastic potential energy refers to the energy stored in an object when it is compressed or stretched, and gravitational potential energy refers to the energy an object possesses due to its position in a gravitational field. Therefore, the correct answer is kinetic energy.Rate this question:
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- 3.
What factors affect kinetic energy? Choose all the factors that apply.
- A.
Mass
- B.
Velocity
- C.
Time
Correct Answer(s)
A. Mass
B. VelocityExplanation
Mass and velocity are the factors that affect kinetic energy. Kinetic energy is directly proportional to mass and velocity. An object with a larger mass or a higher velocity will have a greater kinetic energy. Time, on the other hand, does not directly affect kinetic energy. Therefore, the correct factors that affect kinetic energy are mass and velocity.Rate this question:
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- 4.
When a rubberband is stretched all the way back, it is an example of which type of energy?
- A.
Gravitational potential energy
- B.
Elastic potential energy
- C.
Kinetic energy
Correct Answer
B. Elastic potential energyExplanation
When a rubber band is stretched all the way back, it stores potential energy due to its ability to return to its original shape when released. This potential energy is known as elastic potential energy, as it is stored within the rubber band's elasticity.Rate this question:
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- 5.
A pendelum will eventually slow an stop because of
- A.
Weight
- B.
Kinetic energy
- C.
Friction
Correct Answer
C. FrictionExplanation
A pendulum will eventually slow down and stop because of friction. Friction is a force that opposes motion and it acts between the pendulum bob and the air or the surface it is swinging on. As the pendulum swings back and forth, the frictional force gradually reduces its kinetic energy, causing it to slow down. Eventually, the pendulum comes to a stop due to the continuous loss of energy to friction.Rate this question:
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- 6.
Stored energy that results from the position or shape of an object is called...
- A.
Potential energy
- B.
Kinetic energy
- C.
Thermal energy
Correct Answer
A. Potential energyExplanation
Potential energy is the correct answer because it refers to the stored energy that an object possesses due to its position or shape. This energy has the potential to be converted into other forms of energy, such as kinetic energy, when the object is in motion. Thermal energy, on the other hand, refers to the energy associated with the temperature of an object.Rate this question:
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- 7.
If both of these balls are traveling down a bowling lane at the SAME speed, which one would would have more kinetic energy?
- A.
Ball A
- B.
Ball B
Correct Answer
A. Ball AExplanation
If both balls are traveling at the same speed, the ball with more kinetic energy would be the one with greater mass. This is because kinetic energy is directly proportional to mass. Therefore, Ball A, which is not specified in terms of mass, would have more kinetic energy than Ball B.Rate this question:
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- 8.
Which skier will have a greater potential energy?
- A.
Skier 1
- B.
Skier 2
Correct Answer
A. Skier 1Explanation
Skier 1 will have a greater potential energy because potential energy is directly proportional to the height of an object. If Skier 1 is at a higher elevation than Skier 2, then Skier 1 will have a greater potential energy.Rate this question:
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- 9.
At which two points on the pendelum, is the pendulum experiencing the greatest potential energy?
- A.
Points A & B
- B.
Points A & C
- C.
Points A & D
- D.
Points B & D
Correct Answer
C. Points A & DExplanation
The pendulum experiences the greatest potential energy at points A and D. At these points, the pendulum is at its highest positions, where it has the maximum potential energy due to its height above the reference point.Rate this question:
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- 10.
At what point on the roller coaster ride, will the coaster experience the greatest kinetic energy? Hint: remember the two factors that play a role in maximizing kinetic energy.
- A.
Point A
- B.
Point B
- C.
Point C
- D.
Point D
Correct Answer
B. Point BExplanation
The coaster will experience the greatest kinetic energy at Point B. This is because kinetic energy is directly proportional to both mass and velocity. At Point B, the coaster has the highest velocity due to the acceleration from the downward slope. Therefore, the coaster will have the greatest kinetic energy at this point.Rate this question:
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- 11.
What is happening between Points A-B
- A.
Point A is demonstrating potential energy, the potential energy is then transformed into kinetic energy as the coaster moves downhill.
- B.
Point A is demonstrating kinetic energy, as the rollercoaster moves downhill the kinetic energy is transformed into potential energy.
- C.
Point A and Point B are examples of kinetic energy, there is not energy transformation taking place here.
Correct Answer
A. Point A is demonstrating potential energy, the potential energy is then transformed into kinetic energy as the coaster moves downhill. -
- 12.
When a basketball bounces and hits the ground, it is demonstrating which type of potential energy?
- A.
Gravitational
- B.
Elastic
- C.
Kinetic
Correct Answer
B. ElasticExplanation
When a basketball bounces and hits the ground, it is demonstrating elastic potential energy. Elastic potential energy refers to the energy stored in an object when it is compressed or stretched. In this case, as the basketball hits the ground, it gets compressed momentarily, storing potential energy. This potential energy is then converted into kinetic energy as the basketball rebounds and bounces back up. Therefore, the correct answer is elastic.Rate this question:
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- 13.
The alw of conservation of energy states that when one form of energy is transformed to another, no energy is destroyed.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The explanation for the given correct answer is that the law of conservation of energy states that energy cannot be created or destroyed, but can only be transformed from one form to another. This means that the total amount of energy in a closed system remains constant. Therefore, when one form of energy is transformed into another, the total amount of energy in the system remains the same.Rate this question:
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