Understanding Forces and Motion

What would happen if a racing car had no force applied to it during a race?

• It would keep speeding up

• It would fly into the air

• It would maintain the same speed forever

• It would eventually slow down or stop due to friction

Why is it safer for a car to have crumple zones during a collision?

• To make the car easier to repair

• To protect passengers by absorbing the impact

• To make the car look more modern

• To reduce the price of the car

How can you identify whether a force is contact or non-contact in a situation?

• By checking the color of the objects

• By measuring how fast they move

• By observing if the objects physically touch each other

• By listening to the sound they make

When a magnet attracts a metal chain without touching it, what kind of force is acting?

• Contact force

• Frictional force

• Magnetic force

• Gravitational force

Where does air resistance have the greatest effect on a moving object?

• In a vacuum

• Underwater

• On Earth's surface during fast motion

• Inside a solid

What kind of force helps slow down a spacecraft when it lands using a parachute?

• Magnetic force

• Air resistance

• Frictional force

• Gravitational pull

Why is a large force required to launch a spacecraft into space?

• To reduce weight

• To change its color

• To overcome Earth's gravity

• To cool it down

Who benefits the most from the effects of friction in daily activities?

• Drivers stopping a car

• People using magnets

• Astronauts in space

• Divers in water

How might you redesign a hockey stick to apply a stronger force to a moving ball?

• Make it lighter and shorter

• Use a slippery handle

• Increase the strength and stiffness of the stick

• Paint it a bright color

What is the main reason we cannot see forces directly?

• They are blocked by air

• They move too fast

• They have no color or light

• They are only present in magnets