# Physics Quiz For Class 9

With the ECTI, you will learn through the **Physics Quiz For Class 9** in a continuous testing process. It will help you prepare the particular topic in a row.

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I am sure that the level of** Physics Class 9**** Mcqs With The Answer** is helpful material in the preparation of tests, quizzes, and examinations for a grade.

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In the coming future, I am going to add more** Physics Quiz For Class 9.**

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**Physics Quiz For Class 9 Quiz Instructions:**

- There will be 30 multiple-choice questions in this online test.
- The answer to the questions will change randomly each time you start this test.
- Practice this test at least 3 times if you want to secure High Marks.
- At the End of the Test, you can see your Test score and Rating.
- If you found any incorrect answers in the quiz. simply click on the quiz title and comment on the MCQs. so that our team can update the incorrect answer on time.

- Question of
## If the displacement of an object is proportional to square of time, then the object moves with:

- Uniform velocity
- Uniform acceleration
- Increasing acceleration
- Decreasing acceleration

- Question of
## Velocity is

- speed and acceleration
- constant speed
- a frame of reference
- speed in a given direction

- Question of
## Speed =

- distance / time
- time / distance
- distance * time
- None

- Question of
## You walk 10 meters to math class in 20 seconds. Your average speed is

- 2 m/s
- 0.5 m/s
- 200 m/s
- 5 m/s

- Question of
## On a distance-versus-time graph, a straight line ALWAYS indicates that an object’s speed is _____.

- constant
- zero
- increasing
- decreasing

- Question of
## A horizontal line on a distance vs. time graph means the object’s speed is

- increasing
- decreasing
- zero
- None

- Question of
## motion is the change in what?

- speed
- velocity
- acceleration
- position

- Question of
## What is another word used for negative acceleration?

- speeding up
- accelerating
- deceleration
- velocity

- Question of
## Suppose a boy is enjoying a ride on a marry-go-round which is moving with a constant speed of 10 m/s. It implies that the boy is:

- At rest
- Moving with no acceleration
- In accelerated motion
- Moving with uniform velocity

- Question of
## A particle is moving in a circular path of radius r. The displacement after half a circle would be:

- Zero
- πr
- 2r
- 2πr

- Question of
## A car is moving with a velocity of 10 m/s. If the velocity-time graph for this car is a horizontal line parallel to the time axis, then the velocity of the car at the end of 25 s will be:

- 40 m/s
- 25 m/s
- 10 m/s
- 250 m/s

- Question of
## If the man and the ball travels 90 m in 9 seconds, what is their average speed?

- 10 m/s
- 99 m/s
- 180 m/s
- 10 meters

- Question of
## If a lizard can run 8m across the water in 4 seconds, how fast is he travelling?

- 32 m/s
- 2 seconds
- 2 m/s
- 34 meters

- Question of
## If a dolphin can swim 100 meters in 5 seconds, what is the dolphin’s speed?

- 25 m/s
- 20 m/s
- 20 meters
- 500 m/s

- Question of
## An object is _____ if its position changes relative to another object.

- in motion
- at reset
- a frame of refence
- magical

- Question of
## A distance vs. time graph shows an object’s

- frame of reference
- speed
- acceleration
- favorite food

- Question of
## What is the correct definition of momentum, p =

- ma
- mv2
- mv’
- mc2

- Question of
## Which conditions will result in the smallest change in momentum?

- a large force over a long time period
- a small force over a long time period
- a large force over a short time period
- a small force over a short time period
- a small force over a short time period

- Question of
## The impulse experienced by a body is equivalent to the body’s change in

- velocity
- kinetic energy
- momentum
- force

- Question of
## Which of the following has the greatest momentum?

- truck with a mass of 2250 kg moving at a velocity of 25 m/s
- car with a mass of 1210 kg moving at a velocity of 51 m/s
- truck with a mass of 6120 kg moving at a velocity of 10 m/s
- car with a mass of 1540 kg moving at a velocity of 38 m/s

- Question of
## A roller coaster climbs up a hill at 4 m/s and then zips down the hill at 30 m/s. The momentum of the roller coaster

- is greater up the hill than down the hill
- is greater down the hill than up the hill
- remains the same throughout the ride.
- is zero throughout the ride.

- Question of
## An ice skater initially skating at a velocity of 3 m/s speeds up to a velocity of 5 m/s. The momentum of the skater

- decreases.
- increases.
- remains the same.
- becomes zero.

- Question of
## The momentum of an object depends upon the object’s ___________&_____________.

- size and shape
- mass and speed
- mass and velocity
- mass and energy

- Question of
## The impulse is ______ the change in momentum

- Greater than
- Equal to
- less than
- always double

- Question of
## When the speed of an object is doubled, its momentum

- remains unchanged in accord with the conservation of momentum.
- doubles
- quadruples
- decreases
- decreases

- Question of
## The units for Impulse are

- N/s
- N.s
- N
- m/s

- Question of
## When two objects try to pull each other this is

- Gravity
- Force
- Gravitational Force
- All of the Above

- Question of
## Which of the following wherein gravity is manifested?

- Helium Balloon
- Launching Rocket
- Zip on a Straw
- Bouncing Ball

- Question of
## When you accidentally dropped your cellphone and ONLY gravity is acting on it, it is called

- Gravitational Pull
- Force of Gravity
- Free Fall
- Projectile
- Projectile

- Question of
## Who discovered Gravity?

- Albert Einstein
- Isaac Newton
- Archimedes
- Aristotle