Forces

Multiple Choice

What is a force?

• A type of energy

• A push or pull on an object

• A change in temperature

• A type of matter

Multiple Choice

Which of the following is an example of an unbalanced force?

• A book resting on a table

• A car accelerating on a highway

• A ball remaining stationary on the ground

• A balanced seesaw

Multiple Choice

When forces acting on an object are not equal, they are called:

• Balanced forces

• Opposing forces

• Unbalanced forces

• Gravitational forces

Multiple Choice

What happens when balanced forces act on an object?

• The object changes direction

• The object speeds up

• The object remains in the same state

• The object moves faster

Multiple Choice

In a game of tug of war, if both teams pull with equal force, what will happen?

• One team will win

• The rope will move towards the stronger team

• The rope will remain in the same position

• The rope will break

Multiple Choice

What is friction?

• A force that moves objects forward

• A force that opposes motion

• A force that only exists in water

• A type of energy

Multiple Choice

What causes a moving object to stop when no force is applied?

• Gravity

• Balanced force

• Friction

• Inertia

Multiple Choice

Which factor does NOT affect friction?

• Surface roughness

• Type of material

• Color of the object

• Weight of the object

Multiple Choice

Why do car tyres have treads?

• To reduce friction

• To increase friction

• To decrease weight

• To move faster

Multiple Choice

Which of these is a disadvantage of friction?

• It allows us to walk

• It helps in stopping vehicles

• It causes wear and tear

• It helps objects stay in place

Multiple Choice

What happens when oil is added between two moving parts of a machine?

• Friction increases

• Friction decreases

• The machine stops working

• The machine moves faster

Multiple Choice

Which method is commonly used to reduce friction?

• Using rough surfaces

• Increasing weight

• Applying lubricants

• Making surfaces uneven

Multiple Choice

Why is friction important while walking?

• It slows us down

• It helps us grip the ground

• It makes us slip

• It has no effect

Multiple Choice

Air resistance is a type of:

• Magnetic force

• Contact force

• Frictional force

• Gravitational force

Multiple Choice

How does air resistance affect moving objects?

• It speeds them up

• It slows them down

• It changes their shape

• It has no effect

Multiple Choice

What is an example of air resistance in everyday life?

• A book resting on a table

• A parachute slowing down a person’s fall

• A car parked in a garage

• A stone sinking in water

Multiple Choice

What happens when an object falls towards Earth?

• Gravity pulls it down, and air resistance pushes it up

• Air resistance pulls it down, and gravity pushes it up

• Only gravity acts on it

• The object remains in the air

Multiple Choice

How do birds reduce air resistance while flying?

• By flapping their wings faster

• By reducing their weight

• By having a streamlined body

• By stopping their wings mid-air

Multiple Choice

Which shape helps in reducing air resistance?

• Square

• Streamlined

• Circular

• Rough and uneven