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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 discussion of how to make a machine work
A story about an object stopping suddenly
A lesson on different kinds of forces in nature
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?
Speed divided by mass
Mass times acceleration
Force times speed
Mass plus acceleration
Explanation:
Anna says, ‘It says force equals mass times acceleration.’
3.
What does Anna say acceleration means here?
How fast speed changes
How heavy an object is
How far something moves
How much force is needed to stop
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?
12 m/s²
2 m/s²
1 m/s²
3 m/s²
Explanation:
Anna says the acceleration is ‘3 m/s².’
5.
What can be inferred about Anna from the conversation?
She is unfamiliar with basic force concepts
She can understand and apply the formula after explaining it
She cannot solve math problems involving units
She thinks force only makes objects move
Explanation:
Anna correctly explains the law, describes acceleration, and solves the example by dividing force by mass.
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