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Questions and Answers
Which of the following scenarios primarily demonstrates a non-contact force?
Which of the following scenarios primarily demonstrates a non-contact force?
- A weightlifter lifting a barbell.
- A carpenter hammering a nail into wood.
- A magnet attracting a paperclip. (correct)
- A person pushing a stalled car.
In Experiment No. 5, what type of force is primarily responsible for the high jumper returning to the ground after clearing the bar?
In Experiment No. 5, what type of force is primarily responsible for the high jumper returning to the ground after clearing the bar?
- Gravitational force (correct)
- Electrical force
- Muscular force
- Applied force
According to the provided text, under what circumstances does a contact force act on an object?
According to the provided text, under what circumstances does a contact force act on an object?
- When there is physical contact between the object and the force source. (correct)
- When the object is in motion.
- Only when the object is at rest.
- When there is no physical contact between the object and the force source.
A student observes that a freshly rubbed balloon sticks to a wall. This observation aligns most closely with which experimental result described?
A student observes that a freshly rubbed balloon sticks to a wall. This observation aligns most closely with which experimental result described?
Consider a scenario where a person is pushing a box across a rough floor. Which combination of forces is primarily involved in this action?
Consider a scenario where a person is pushing a box across a rough floor. Which combination of forces is primarily involved in this action?
Flashcards
Muscular force
Muscular force
A force exerted by muscles to perform work, like squeezing.
Electrical force
Electrical force
A force occurring between charged objects, can act at a distance.
Gravitational force
Gravitational force
The force that attracts an object toward the center of the Earth.
Contact force
Contact force
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Non-contact force
Non-contact force
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