G.k quiz

Full form of d.s.p

• Deputy superintend of police

• Deputy superintend of policy

Which one is NOT an example of a push or pull force.

• Closing a door

• Moving a car that has stopped working

• Taking a walk

• Picking up a glass of water

Push or pulling forces can change an objects motion.

• True

• False

Is the force usually exerted by a surface on an object that is resting against it.

• Friction

• Normal force

• Elasticity

• Tension

The force of gravity also exists on the Moon but it is not as strong as it is on Earth. This is because the Moon is much_________________________________ than our planet.

• bigger

• almost same size

• smaller

___________ is the amount of substance in an object.

• Friction

• Weight

• Volume

• Mass

The _______________________the vehicle moves, the bigger the air resistance becomes. The top speed of a vehicle is reached when the force from the cyclist or engine is balanced by air resistance.

• slower

• faster

When a force is exerted on an object, it can change the object’s__________________________

• direction of movement

• Speed

• shape (for example, an elastic band gets longer if you pull it)

• All of the given choices

Whenever an object moves against another object, it feels ____________________________. These forces act in the opposite direction to the movement.

• joint forces

• frictional forces

• muscular forces

Friction can be useful. For example:-

• friction between our shoes and the floor stop us from slipping

• friction between tyres and the road stop cars from skidding

• friction between the brakes and wheel help bikes and cars to slow down

• All of the given choices