Question # 1

1 micro =

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10^-3

10^-6

10^-2

10^-12

____________ from sun are major source of energy on earth.

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Light

Radiation

Both a & b

None of these

The slope of distance time graph shows.

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Speed

Displacement

Acceleration

Distance

The Atwood machine can be used to find the acceleration due to gravity using the equation

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g = 2 (m1 x m2)/(m1 + m2) a

g = (m1 - m2)/(m1 + m2) a

g = (m1 + m2)/(m1 - m2) a

Rolling friction is___________ then sliding friction :

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Greter

Less

Some

Half

The Mars has value of g

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25.94 m/sec2

3.73 m/sec2

1.62 m/sec2

8.87 m/sec2

Law of Gravitation is consistence with:

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1st Law of motion

2nd Law of motion

3rd Law of motion

Law of momentum

The forces that are parallel to each other and have the same direction are called:

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Like parallel forces

Unlike parallel forces

Resultant forces

Net forces

If the force of 25 N is acting along the string to balance the weight then tension in string is

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25 N

50 N

Zero

None

The number of perpendicular components of a force are

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1

2

3

4

The velocity of freely falling bbodies moving upward.

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Decreases

Increases

Constnat

zero

Thermal conductivities of Lead

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23

30

35

85

Feathers of bird give good thermal:

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Conduction

Insulation

Convection

None of these

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Physics 9th Class English Medium Online Test MCQs With Answers

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