Energy Transfer and Kinetic Energy Quick Check
Science 8 Q1 / Energy of Motion
Which of the following is an example of kinetic energy transfer?(1 point)
Responses
A large snowball sitting at the top of a hill
Xavier pushing Brad down the snowy hill on a sled
A car driving up a steep hill
Jules sitting in a chair
Which example demonstrates kinetic energy?(1 point)
Responses
A wave crashing on the shore
A stretched-out rubber band
A car parked in the parking lot
A rock sitting at the top of a hill
When Kiara plays the piano, how does kinetic energy transfer from one object to the other?(1 point)
Responses
Energy transfers from Kiara’s fingers to the piano keys
Energy transfers from the piano keys to Kiara’s fingers
Energy transfers from the piano pedals to the piano keys
Energy transfers from the air to Kiara’s fingers
what are the correct answers to all 3 questions
The correct answers to the three questions are:
1) Xavier pushing Brad down the snowy hill on a sled
2) A wave crashing on the shore
3) Energy transfers from Kiara’s fingers to the piano keys.
I apologize for the confusion. Let me correct my response.
The correct answers to the three questions are:
1) Xavier pushing Brad down the snowy hill on a sled
2) A wave crashing on the shore
3) Energy transfers from Kiara’s fingers to the piano keys.
The correct answers to the three questions are:
1) Xavier pushing Brad down the snowy hill on a sled
2) A wave crashing on the shore
3) Energy transfers from Kiara’s fingers to the piano keys
The correct answers to the questions are as follows:
1. Xavier pushing Brad down the snowy hill on a sled is an example of kinetic energy transfer.
2. A wave crashing on the shore demonstrates kinetic energy.
3. When Kiara plays the piano, kinetic energy transfers from Kiara's fingers to the piano keys.
The correct answers to the questions are:
1. Which of the following is an example of kinetic energy transfer?
Answer: Xavier pushing Brad down the snowy hill on a sled
To determine the correct answer, you need to understand the concept of kinetic energy transfer. Kinetic energy is the energy of motion. In this example, Xavier pushing Brad down the snowy hill on a sled involves the movement of objects, which signifies the transfer of kinetic energy.
2. Which example demonstrates kinetic energy?
Answer: A wave crashing on the shore
To identify the example that demonstrates kinetic energy, you should know that kinetic energy is associated with the movement of an object. Among the given choices, a wave crashing on the shore involves the movement of water, signifying the presence of kinetic energy.
3. When Kiara plays the piano, how does kinetic energy transfer from one object to the other?
Answer: Energy transfers from Kiara’s fingers to the piano keys
To determine how kinetic energy transfers in this scenario, you need to consider which part of the piano and Kiara's body is involved in the movement. When Kiara plays the piano, her fingers are in motion, striking the piano keys. This movement signifies the transfer of kinetic energy from Kiara's fingers to the piano keys. Hence, the correct answer is energy transfers from Kiara’s fingers to the piano keys.