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Listening Quiz: Hiểu Định Luật Thứ Hai của Newton – Medium Level
Th11 20, 2024
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bởi
Anna Phạm
trong
Tiếng Anh dành cho Nhà vật lý học (English for Physicist)
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1.
What is the conversation mainly about?
A lesson on different kinds of forces in nature
A story about an object stopping suddenly
A discussion of how to make a machine work
A review of Newton’s Second Law and how to use it
Explanation:
William and Anna discuss force, mass, acceleration, and solve a Newton’s Second Law problem.
2.
According to Anna, what does force equal in Newton’s Second Law?
Force times speed
Mass times acceleration
Mass plus acceleration
Speed divided by mass
Explanation:
Anna says, ‘It says force equals mass times acceleration.’
3.
What does Anna say acceleration means here?
How heavy an object is
How much force is needed to stop
How far something moves
How fast speed changes
Explanation:
Anna explains that acceleration means ‘how fast speed changes.’
4.
For the 2 kg object with 6 N of force, what acceleration does Anna give?
1 m/s²
12 m/s²
3 m/s²
2 m/s²
Explanation:
Anna says the acceleration is ‘3 m/s².’
5.
What can be inferred about Anna from the conversation?
She thinks force only makes objects move
She is unfamiliar with basic force concepts
She cannot solve math problems involving units
She can understand and apply the formula after explaining it
Explanation:
Anna correctly explains the law, describes acceleration, and solves the example by dividing force by mass.
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