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Bsbwor501 Final Exam

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1. Below have four simple examples from our life, but only one example is about the inertia. Choose the correct one.
A. When the driver brakes, the passenger’s body will forward lean.
B. I feel tired when I am running.
C. Amy cannot stop herself to walk.
D. You want to turn left, but you turn right.

2. Why we need to fasten our seat belt when we take the bus?
A. Seat belt makes us feel safe.
B. Because of the inertia.
C. For decorative.
D. Fitted by law.

3. Which formula is about the Newton’s Second Law?
A. v= s/t
B. G= mg
C. F= μFN
D. F= ma

4. A cellphone is on the table (the cellphone is motionless). Which of the following is correct?
A. The cellphone has inertia.
B. There is no force acting on the table.
C. There is no force acting …show more content…
Elevating hammer to drive nail.
D. Turn on the light.

13. Kinetic energy which means an object must be:
A. Motionless
B. In movement
C. A or B
D. None of the above.

14.Elastic energy belong to:
A. Kinetic energy
B. potential energy
C. Especial energy
D. None of the above

15.Which type of energy is associated with the motion of an object? A. Kinetic energy
B. Potential energy
C. Elastic energy
D. None of the above

Answer Key

1. A. Because of inertia, so the body will forward lean.
2. B. when the driver breaks suddenly and our body will forward lean, for safe we need to fasten our seat belt.
3. D. base on Newton’s Second Law, traditional form: net force= mass acceleration
4. A. the cellphone has inertia.
5. A. the statement based on Newton’s First Law.
6. C. net force= mass acceleration.
7. B. it is from Newton’s Second Law.
8. A. because zero net force, so the cellphone is equilibrium.
9. D. it is from Newton’s Third Law.
10. B. because the object is moving.
11. B. based on the definition.
12. C. use gravitational potential energy to drive nail.
13. B. based on the definition from kinetic energy.
14. B. base on the definition from potential energy.
15. A. based on the definition from kinetic

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