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Quiz (Intermediate Level)

Authored by Ashish kumar

Physics

University

Used 4+ times

Quiz (Intermediate Level)
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15 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

A spherical object falls through water at constant speed. Three forces act on the object.

Which diagram, showing these three forces to scale, is correct?

Media Image
Media Image
Media Image
Media Image

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

A radio-controlled toy car travels along a straight line for a time of 15s.

The variation with time t of the velocity v of the car is shown.

What is the average velocity of the toy car for the journey shown by the graph?

–1.5ms–1

0.0ms–1

4.0ms–1

4.5ms–1

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The acceleration of free fall on Pluto is 0.66ms–2.

An object weighs 6.0N on Earth.

What would this object weigh on Pluto?

0.40N

0.93N

4.0 N

39N

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

A student wishes to measure a distance of about 10cm to a precision of 0.01cm.

Which measuring instrument should be used?

Screw gauge

micrometer

tape measure

vernier calipers

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

A pendulum bob is held stationary by a horizontal force H. The three forces acting on the bob are

shown in the diagram.


The tension in the string of the pendulum is T. The weight of the pendulum bob is W. The string is held at an angle of 30° to the vertical.


Which statement is correct?

H = T cos 30

T = H sin30

W = T sin30

W = T cos 30

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Number of Significant Digits: 0.06300

1

2

3

4

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which law of thermodynamics states that absolute zero cannot be reached?

Ist

2nd

3rd

None of above

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