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Wrack your brain: Practice Questions

A brightly colored image of a physics lab with science equipment like test tubes, a water tank, and mirrors, alongside a light bulb and a dropper, conveying the theme of various scientific principles in action.

Mind-Bending Science Quiz

Test your knowledge with our engaging quiz that challenges your understanding of various scientific concepts. From mechanics to optics, each question prompts you to think critically and applies real-world scenarios to science.

Join us and discover:

The fascinating principles behind everyday phenomena
How well you grasp fundamental science concepts
Fun facts and insights as you answer each question

10 Questions2 MinutesCreated by ExploringStar57

A batsman hits the ball for a boundary past the bowler I.e. Four runs. The batsman thus

Changes the direction & speed of the ball

Does not change the direction but speed only

Does not change the speed but direction only

Does not change either direction or speed

At an amusement park, a capsule in a free fall tower ride has a huge magnet fitted to its base. The capsule is prevented from hitting the ground by a powerful magnet, placed at the bottom of the ride. Which force will be used to prevent the capsule from hitting the ground?

Gravitational force

Repulsive force between the magnets

Attractive force between the magnets

Electrostatic force

Kartiki stand in front of a plane mirror. The distance between Kartiki and her image in the plane mirror is 20 m. How much distance should he move in order to get the distance of 15 m between herself and her image?

img

7.5 m away from the mirror

2.5 m away from the mirror

7.5 m towards the mirror

2.5 m towards the mirror

Lowest part of the footwear is not plain and smooth. They are grooved to make the surfaces rough

Rough surface gives enough grip while moving.

This decreases friction

Both A and B are correct.

None of the above.

While smoothing the surface, the grinding stone produces spark. It is due to

Light energy produces due to friction

Heat energy is produced due to friction changes to light energy.

The material starts burning by heat.

None of the above.

Atmospheric pressure is experienced by us but we don't feel it. This is because

It gets neutralized by gravity.

Pressure inside our body is equalized to atmospheric pressure.

As the surface area of our body is larger than atmospheric pressure.

None of the above.

If the angle between mirror and incident ray is 50°, then calculate the angle between the incident ray and the reflected ray.

img2

100 degrees

50 degrees

80 degrees

130 degrees

A water tank has four taps fixed at points A, B, C, D as shown in figure. The water will flow out at the same pressure from taps at ____

img3

A and B

C and D

A and C

B and C

When we press the bulb of a dropper with its nozzle kept in water, air in the dropper is seen to escape in the form of bubbles. Once we release the pressure on the bulb, water gets filled in the dropper. The rise of water in the dropper is due to _______

Pressure of water

Gravity of the earth

Shape pf the bulb

Atmospheric pressure

A balloon is filled with water and tied a knot. Small amount of air remained in the balloon while tying a knot. When the balloon is placed in large container with water, what will happen?

Balloon will sink due to pressure of air inside it

Balloon will float because the pressure inside balloon is less than the thrust applied by water

Balloon will be completely immersed in water but floating because the air is very small compared to amount of water

Can’t say.

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