Chapter 2: Newton's First Law Of Motion, Inertia
10 Questions
| Total Attempts: 481
Questions and Answers
- 1.Whereas Aristotle relied on logic in explaining nature, Galileo relied on
- A.
Logic also
- B.
Patterns
- C.
Experiment
- D.
Mathematics
- 2.The scientist to first introduce the concept of inertia was
- A.
Aristotle
- B.
Galileo
- C.
Newton
- D.
Copernicus
- 3.Galileo's interpretation of motion differed from Aristotle's in that Galileo emphasized
- A.
The acceleration of free fall
- B.
Time rates
- C.
The role of distance in describing motion
- D.
All of these
- E.
None of these
- 4.A sheet of paper can be withdrawn from under a container of milk without toppling it if the paper is jerked quickly. This best demonstrates that
- A.
The milk carton has no acceleration
- B.
There is an action-reaction pair of forces
- C.
Gravity tends to hold the milk carton secure
- D.
The milk carton has inertia
- E.
None of these
- 5.An object in mechanical equilibrium is an object
- A.
At rest
- B.
Moving with constant velocity
- C.
Having no acceleration
- D.
All of these
- 6.When you stand at rest on a pair of bathroom scales, the readings on the scales will always
- A.
Each be half your weight
- B.
Each equal your weight
- C.
Add up to equal your weight
- 7.Hang from a pair of gym rings and the upward support forces of the rings will always
- A.
Each be half your weight
- B.
Each equal your weight
- C.
Add up to equal your weight
- 8.A man weighing 800 N stands at rest on two bathroom scales so that his weight is distributed evenly over both scales. The reading on each scale is
- A.
200 N
- B.
400 N
- C.
800 N
- D.
None of these
- 9.The force of friction on a sliding object is 10 N. The applied force needed to maintain a constant velocity is
- A.
More than 10 N
- B.
Less than 10 N
- C.
10 N
- 10.A 300-kg bear grasping a vertical tree slides down at constant velocity. The friction force between the tree and the bear is
- A.
30 N
- B.
300 N
- C.
3000 N
- D.
More than 3000 N
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