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Types of Forces I. Gravitational Force and Weight
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| Tutorial ID | Title | Tutorial | Video Tutorial | Revision Notes | Revision Questions | |
|---|---|---|---|---|---|---|
| 4.2 | Types of Forces I. Gravitational Force and Weight |
Types of Forces I. Gravitational Force and Weight Revision Questions
1. A 150 g bird is flying. What are the magnitudes of its Gravitational Force and Weight rounded to 2 decimal places? Take g⃗ = 9.81 N/kg.
- Fg = 1.47 N, W = 0
- Fg = 147.15 N, W = 147.15 N
- Fg = 0, W = 1.47 N
- Fg = 147.15 N, W = 0
Correct Answer: A
2. It is known that gravity of Moon is much weaker than that of the Earth.
Which of the following statements is WRONG?
- Weight of an object at Moon is smaller than weight of the same object on Earth
- Mass of an object at Moon is smaller than weight of the same object on Earth
- Gravitational force experienced by an object at Moon is smaller than that of the same object on Earth
- Gravity experienced by an object at Moon is smaller than that experienced by the same object on Earth
Correct Answer: B
3. What is the weight of the object shown in the figure?
(Take g⃗ = 9.81 N/kg; cos 150 = 0.966; sin 150 = 0.259 )
- 10.16 N
- 39.24 N
- 37.91 N
- 588.60 N
Correct Answer: C
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