Physics Quiz 06

When a body is accelerated

It falls towards earth

Its velocity always changes

Its direction always changes

Its speed always changes

Correct! Wrong!

A car accelerates for 10s at 6 m/s2. What is its final seed if its initial was 4 m/s?

30 m/s

34 m/s

60 m/s

64 m/s

Correct! Wrong!

A force of 100 dynes acts for 10 seconds on a body of mass500g. What is the change in momentum?

100 C.G.S. units

1000 C.G.S. units

10 C.G.S. units

5000 C.G.S. units

Correct! Wrong!

We know that forces are vectors because

They have magnitude

They are defined in such a way that they are vectors

They always add to zero

They obey the same mathematical rules that displacement obey

Correct! Wrong!

Which of the following vector quantities? I. Density II. Acceleration III. Energy IV. Force

I & III

II & IV

I only

None

Correct! Wrong!

A rope attached to a post in the ground is pulled horizontally with a force of 80 kg. The pole pulls back with a force of

1000 kg

40 kg

160 kg

80 kg

Correct! Wrong!

If a car is to gain momentum, it must

loose Weight

Move rapidly

Accelerate

Lose Inertia

Correct! Wrong!

Which of the following is not accelerated?

A car in which the engine thrust is equal to the friction

A tennis ball rebounding from the ground

The moon in its orbit

A stone in free fall

Correct! Wrong!

The algebraic sign of acceleration depends on

Whether an object is speeding up or sowing down

The position of the object

Choice of direction

The sign of velocity

Correct! Wrong!

An 800 kgs. fireman slides down a pole in a fire station. His grip on the pole causes a frictional force of 240 newtons opposing his fall. What is the approximate value of his acceleration towards the floor below?

7 m/sec^2

10 m/sec^2

13 m/sec^2

18 m/sec^2

Correct! Wrong!

When a body is accelerated

A car accelerates for 10s at 6 m/s2. What is its final seed if its initial was 4 m/s?

A force of 100 dynes acts for 10 seconds on a body of mass500g. What is the change in momentum?

We know that forces are vectors because

Which of the following vector quantities? I. Density II. Acceleration III. Energy IV. Force

A rope attached to a post in the ground is pulled horizontally with a force of 80 kg. The pole pulls back with a force of

If a car is to gain momentum, it must

Which of the following is not accelerated?

The algebraic sign of acceleration depends on

An 800 kgs. fireman slides down a pole in a fire station. His grip on the pole causes a frictional force of 240 newtons opposing his fall. What is the approximate value of his acceleration towards the floor below?

About the author

Muhammad Arslan

When a body is accelerated

A car accelerates for 10s at 6 m/s2. What is its final seed if its initial was 4 m/s?

A force of 100 dynes acts for 10 seconds on a body of mass500g. What is the change in momentum?

We know that forces are vectors because

Which of the following vector quantities? I. Density II. Acceleration III. Energy IV. Force

A rope attached to a post in the ground is pulled horizontally with a force of 80 kg. The pole pulls back with a force of

If a car is to gain momentum, it must

Which of the following is not accelerated?

The algebraic sign of acceleration depends on

An 800 kgs. fireman slides down a pole in a fire station. His grip on the pole causes a frictional force of 240 newtons opposing his fall. What is the approximate value of his acceleration towards the floor below?

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About the author

Muhammad Arslan