FORCE - 2

What is the state of motion of an object at re st ?

• Zero speed

• Constant speed

• Increasing speed

• Changing direction

What force is used when lifting a bucket of water ?

• Magnetic force

• Muscular force

• Gravitational force

• Electrostatic force

Which of the following is a non contact force ?

• Frictional force

• Muscular force

• Gravitational force

• Contact force

Why does an inflated balloon exert pressure on its walls ?

• Due to magnetic force

• Due to air pressure inside

• Due to frictional force

• Due to muscular force

What is the effect of friction on a moving object ?

• Increases speed

• Decreases speed

• Changes shape

• Increases weight

Why do shoulder bags have broad straps?

• To increase pressure

• To reduce pressure

• To increase force

• To change direction

What determines the strength of a force ?

• Its colour

• Its magnitude and direction

• Its shape

• Its speed

Why might a heavy box not move when pushed?

• No force is applied

• Force is less than friction

• Box is too light

• Box is magnetic

What force do animals like horses use to pull carts?

• Magnetic force

• Muscular force

• Gravitational force

• Electrostatic force

What does rubbing a straw with paper demonstrate?

• Magnetic force

• Electrostatic force

• Frictional force

• Muscular force