Why is Newton's cradle an "almost-ideal" system?(1 point) Responses Friction and air resistance cause the balls to slow down eventually and stop. Friction and air resistance cause the balls to slow down eventually and stop. The system would work more efficiently if more balls were added. The system would work more efficiently if more balls were added. Friction and air resistance are negligible and the system continues to move indefinitely. Friction and air resistance are negligible and the system continues to move indefinitely. The balls continue on for an unlimited amount of time. The balls continue on for an unlimited amount of time. Question 2 Which choice below is an example of a perfectly closed system?(1 point) Responses An automobile moving down the highway. Energy transfer only occurs inside the motor. An automobile moving down the highway. Energy transfer only occurs inside the motor. Newton's cradle. The energy transfer only occurs between the balls. Newton's cradle. The energy transfer only occurs between the balls. A cup of water with ice in it, open to the air. A cup of water with ice in it, open to the air. A cup of tea with a lid on it. energy transfer takes place with the cup and the surroundings, but no matter leaves the tea.

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Question 1: Why is Newton's cradle an "almost-ideal" system?

Response: Friction and air resistance cause the balls to slow down eventually and stop.

Question 2: Which choice below is an example of a perfectly closed system?

Response: A cup of tea with a lid on it; energy transfer takes place with the cup and the surroundings, but no matter leaves the tea.

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Why is Newton's cradle an "almost-ideal" system?(1 point) Responses Friction and air resistance cause the balls to slow down eventually and stop. Friction and air resistance cause the balls to slow down eventually and stop. The system would work more efficiently if more balls were added. The system would work more efficiently if more balls were added. Friction and air resistance are negligible and the system continues to move indefinitely. Friction and air resistance are negligible and the system continues to move indefinitely. The balls continue on for an unlimited amount of time. The balls continue on for an unlimited amount of time. Question 2 Which choice below is an example of a perfectly closed system?(1 point) Responses An automobile moving down the highway. Energy transfer only occurs inside the motor. An automobile moving down the highway. Energy transfer only occurs inside the motor. Newton's cradle. The energy transfer only occurs between the balls. Newton's cradle. The energy transfer only occurs between the balls. A cup of water with ice in it, open to the air. A cup of water with ice in it, open to the air. A cup of tea with a lid on it. energy transfer takes place with the cup and the surroundings, but no matter leaves the tea.

1 answer

Question 1: Why is Newton's cradle an "almost-ideal" system?

Response: Friction and air resistance cause the balls to slow down eventually and stop.

Question 2: Which choice below is an example of a perfectly closed system?

Response: A cup of tea with a lid on it; energy transfer takes place with the cup and the surroundings, but no matter leaves the tea.

GPT-4o mini · Answer

**Question 1:** Why is Newton's cradle an "almost-ideal" system? **Response:** Friction and air resistance cause the balls to slow down eventually and stop. **Question 2:** Which choice below is an example of a perfectly closed system? **Response:** A cup of tea with a lid on it; energy transfer takes place with the cup and the surroundings, but no matter leaves the tea.