Question 1

When a bicycle travels on a rough surface, its speed

Accepted Answer

A) increases 
B) decreases 
C) remains the same 
D) none of these 
A) increases 
B) decreases 
C) remains the same 
D) none of these B

Question 2

The law which defines force is

Accepted Answer

A) Newton's third law of motion 
B) Newton's first law of motion 
C) Newton's second law of motion 
D) Newton's law of gravitation 
A) Newton's third law of motion 
B) Newton's first law of motion 
C) Newton's second law of motion 
D) Newton's law of gravitation B

Question 3

Therm is the unit of

Accepted Answer

A) heat 
B) temperature 
C) thermometry 
D) work 
A) heat 
B) temperature 
C) thermometry 
D) work A

Question 4

The period of pendulum depends upon

Accepted Answer

A) mass 
B) length 
C) amplitude 
D) energy 
A) mass 
B) length 
C) amplitude 
D) energy

Question 5

Pressure is a

Accepted Answer

A) scalar quantity 
B) vector quantity 
C) normal force 
D) all the above are wrong 
A) scalar quantity 
B) vector quantity 
C) normal force 
D) all the above are wrong

Question 6

A boat full of iron nails is floating on water in a lake. When the iron nails are removed, the water level

Accepted Answer

A) rises 
B) falls 
C) remains the same 
D) nothing can be said 
A) rises 
B) falls 
C) remains the same 
D) nothing can be said

Question 7

the flowing water of a river possesses ______ energy.

Accepted Answer

A) gravitational 
B) potential 
C) electrical 
D) kinetic 
A) gravitational 
B) potential 
C) electrical 
D) kinetic

Question 8

The upward force acting on the body immersed in a fluid is called

Accepted Answer

A) hydrostatic pressure 
B) buoyant force 
C) true weight 
D) net force 
A) hydrostatic pressure 
B) buoyant force 
C) true weight 
D) net force

Question 9

Potential energy of the bob is maximum

Accepted Answer

A) at the mean position 
B) at the extreme position 
C) between the mean position and extreme positions 
D) none of these 
A) at the mean position 
B) at the extreme position 
C) between the mean position and extreme positions 
D) none of these

Question 10

Work done upon a body is

Accepted Answer

A) a vector quantity 
B) a scalar quantity 
C) always positive 
D) always negative 
A) a vector quantity 
B) a scalar quantity 
C) always positive 
D) always negative

Question 11

A bird flying in the sky has

Accepted Answer

A) K.E. only 
B) P.E. only 
C) neither K.E. nor P.E. 
D) both K.E. and P.E. 
A) K.E. only 
B) P.E. only 
C) neither K.E. nor P.E. 
D) both K.E. and P.E.

Question 12

The buoyant force depends on

Accepted Answer

A) depth of a liquid 
B) colour of a liquid 
C) density of liquid 
D) none of these 
A) depth of a liquid 
B) colour of a liquid 
C) density of liquid 
D) none of these

Question 13

Soda bottles are made of thick glass so that they can withstand the

Accepted Answer

A) pressure in summer 
B) temperature in summer 
C) decrease in viscosity 
D) increase in potential energy 
A) pressure in summer 
B) temperature in summer 
C) decrease in viscosity 
D) increase in potential energy

Question 14

The unit of power is

Accepted Answer

A) watt per second 
B) joule 
C) kilo joule 
D) watt 
A) watt per second 
B) joule 
C) kilo joule 
D) watt

Question 15

The hot air balloon rises because it is

Accepted Answer

A) denser 
B) less dense 
C) equally dense 
D) the given statement is wrong 
A) denser 
B) less dense 
C) equally dense 
D) the given statement is wrong

Question 16

Evaporation is the process of changing liquid into vapour

Accepted Answer

A) at any temperature 
B) above its boiling point 
C) at its boiling point 
D) below its boiling point 
A) at any temperature 
B) above its boiling point 
C) at its boiling point 
D) below its boiling point

Question 17

The branch of physics which deals with the study of fluids in motion is called

Accepted Answer

A) dynamics 
B) hydrostatics 
C) hydrodynamics 
D) none of these 
A) dynamics 
B) hydrostatics 
C) hydrodynamics 
D) none of these

Question 18

Pascal is the unit for

Accepted Answer

A) pressure 
B) thrust 
C) buoyant force 
D) None of these 
A) pressure 
B) thrust 
C) buoyant force 
D) None of these

Question 19

The first thermometer was developed by

Accepted Answer

A) Joule 
B) Fahrenheit 
C) Galileo 
D) Watt 
A) Joule 
B) Fahrenheit 
C) Galileo 
D) Watt

Question 20

In summer, the clocks

Accepted Answer

A) become slow 
B) become fast 
C) gives correct time 
D) lose time 
A) become slow 
B) become fast 
C) gives correct time 
D) lose time

When a bicycle travels on a rough surface, its speed

The law which defines force is

Therm is the unit of

The period of pendulum depends upon

Pressure is a

A boat full of iron nails is floating on water in a lake. When the iron nails are removed, the water level

the flowing water of a river possesses ______ energy.

The upward force acting on the body immersed in a fluid is called

Potential energy of the bob is maximum

Work done upon a body is

A bird flying in the sky has

The buoyant force depends on

Soda bottles are made of thick glass so that they can withstand the

The unit of power is

The hot air balloon rises because it is

Evaporation is the process of changing liquid into vapour

The branch of physics which deals with the study of fluids in motion is called

Pascal is the unit for

The first thermometer was developed by

In summer, the clocks

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Exam 8: Physics: Speed on Rough Surfaces, Friction, Buoyant Force, and More

When a bicycle travels on a rough surface, its speed

The law which defines force is

Therm is the unit of

The period of pendulum depends upon

Pressure is a

A boat full of iron nails is floating on water in a lake. When the iron nails are removed, the water level

the flowing water of a river possesses ______ energy.

The upward force acting on the body immersed in a fluid is called

Potential energy of the bob is maximum

Work done upon a body is

A bird flying in the sky has

The buoyant force depends on

Soda bottles are made of thick glass so that they can withstand the

The unit of power is

The hot air balloon rises because it is

Evaporation is the process of changing liquid into vapour

The branch of physics which deals with the study of fluids in motion is called

Pascal is the unit for

The first thermometer was developed by

In summer, the clocks

Biology and Physiology: Glands, Digestion, Photosynthesis, and Respiration

Respiratory and Circulatory System: Understanding the Basics

Human Anatomy and Physiology

Biology and Health

Chemistry and Physics: Particles, Acids, Gases, and Minerals

Metal Alloys, Elements, and Processes in Chemistry

Chemistry, Physics and Units in the SI System

Waves and Light

The Anatomy and Physiology of the Eye, Light Refraction, and Cellular Processes in Biology

Science

Brain Functions, Plant Processes, and Agricultural Practices

Filters