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WorksheetsPhysics Quiz on Forces and Energy
Total questions: 44
Worksheet time: 15mins
Which of the following is an example of a contact force?
Sun’s Heat
Pushing a door
Gravity pulling a falling apple
I want to slide a wooden block across a table faster, yet friction doesn’t exist, what will happen to the wooden block?
It will stop and not move at all.
It will continuously move until something stops it.
It will unendingly move anywhere and has the possibility of flying on its own.
Which of the following has the most kinetic energy?
A man on the elevator
A slow-moving bicycle
A fast-moving train
What happens to the potential energy of a ball as it drops from a height?
It increases as the ball falls
It stays the same until it hits the ground
It decreases and transforms into kinetic energy
If the Earth’s gravity suddenly became stronger, how would it affect people and objects?
Everything would fly in the air.
People and objects would become weightless.
Objects would fall faster, and people would feel heavier.
A light bulb feels warm after being turned on for a while. What two forms of energy are being produced?
Light energy and Heat energy
Sound energy and Electrical energy
Chemical energy and Mechanical energy
What causes the rock to fall to the ground faster than a feather when both are dropped at the same time?
The rock has more gravity pulling it down.
The feather has less mass than the rock.
Air resistance slows the feather more than the rock.
My father is using a crowbar to lift a rock. How does the crowbar help?
It changes the direction of force.
It reduces the weight of the rock.
It increases the force applied to the rock.
I kick a ball on a grassy field and then kicks another ball on a cement road, what can you infer about the difference in the ball's movement on each surface?
The ball is heavier on the grass, therefore the ball will move farther.
The cement has less friction than grass, therefore the ball will move farther.
The grass has more gravity than cement, therefore the ball will move nearer.
What happens when two magnets with the same poles (e.g., north-north) are placed close to each other?
They repel each other
They attract each other
They combine into one magnet
If friction did not exist, what would happen when you try to walk?
It would not affect movement at all.
Walking would be easier because gravity would help.
You would slide uncontrollably because there would be no grip.
A flag is raised using a rope and pulley system. Why is a pulley helpful in this case?
It removes the weight of the flag.
It reduces the need for force to move the flag.
It changes the direction of the force applied.
What type of force helps a parachute slow down a skydiver?
Gravity
Magnetic force
Air resistance
A pair of scissors is an example of which two simple machines combined?
Pulley and lever
Wedge and lever
Ramp and screw
I drop two identical balls from the same height—one on Earth and one on the Moon—how will they fall differently?
Both will fall at the same acceleration.
The ball on Earth will float because gravity is stronger.
The ball on the Moon will fall slower because gravity is weaker there.
A man uses a wedge to split a log. Why is a wedge more effective than using a flat tool?
It makes the log heavier.
It added gravity from the log.
It increases the force applied to the log.
A girl identified a bicycle as an example of a complex machine. Which simple machines work together in a bicycle?
Pulley and lever
Wedge and lever
Wheel and axle and screw
A boy pushes a toy car on a smooth floor, and it moves far. He then pushes the same toy car on a rough carpet, and it stops quickly. What can he infer from this observation?
The toy car moves faster on rough surfaces.
Gravity is weaker on the carpet than on the floor.
The rough carpet has more friction than the smooth floor.
Which of the following is an example of a non-contact force?
Friction slows down a moving object.
Gravity pulls objects toward the ground.
Electric current attracts or repels charges.
What type of energy transformation occurs when you eat food and then go for a run?
Light energy to sound energy
Chemical energy to kinetic energy
Electrical energy to thermal energy
A man owns a BMW, which of the following shows how energy transformation occurs when the fuel is burned to make the car move?
Chemical → Electrical energy + Heat energy
Mechanical energy → Electrical energy + Heat energy
Chemical energy → Mechanical energy + Heat energy
Which of the following shows effects of a force?
It’s light and sound energy
It can push or pull on an object
It can produce material from new objects
If a magnet pulls away from a paperclip, the paperclip follows the magnet but eventually falls off the table. What forces are acting on the paperclip?
Only magnetic force
Only gravitational force
Both magnetic force and gravity
I tighten two pieces of wood using a screw. How does the screw help?
It replaces the need for glue.
It removes gravity from the wood.
It holds the wood using friction and force.
What type of force helps a kite glide smoothly in the air?
Gravity
Air resistance
Magnetic force
Which of the following is an example of a non-contact force?
Kicking a ball
Static friction on the hair
Normal force of the flower vase
What happens when two magnets with different poles (e.g., south-north) are placed close to each other?
They repel each other
They attract each other
They push each other away
A curtain uses a rope and pulley system. Why is a pulley helpful in this case?
It removes the weight of the curtain.
It changes the direction of the force applied.
It reduces the need for force to move the curtain.
Which of the following has the most potential energy?
The elevator at the top floor
A slow-moving bicycle
A fast-moving train
A farmer uses an axe to split a log. Which of the following best explains the simple machine used?
Lever to make the log heavier
Pulley to remove the gravity from the log
Wedge increases the force applied to the log
What causes a bowling ball to fall to the ground faster than a piece of paper when both are dropped at the same time and at the same height?
The piece of paper has less mass than the bowling ball.
The bowling ball has more gravity, pulling it down to the ground.
Air resistance slows the piece of paper more than the bowling ball.
What type of energy transformation occurs on a flashlight when you put the battery in it and then it lights up?
Electrical energy to light energy
Chemical energy to light energy
Chemical energy to thermal energy
Which of the following sequences shows how energy transformations occur when using an electric kettle to boil water?
Electrical energy → Thermal energy + Sound energy
Mechanical energy → Electrical energy + Heat energy
Chemical energy → Mechanical energy + Heat energy
A man pushes a grocery cart on a tiled ground. What forces are present in the situation?
Only applied force
Both applied and frictional force
Only applied and gravitational force
Which of the following is an example of a contact force?
Friction slows down a moving object.
Gravity pulls objects toward the ground.
Metals are attracted to magnetic objects.
What happens to the potential energy of a rock as it rolls down a slope?
The P.E increases as the ball falls.
The P.E stays the same until it hits the ground.
The P.E decreases and transforms into kinetic energy.
Which of the following shows the effects of a force?
It’s a light and sound energy.
It can push or pull on an object.
It can produce material from new objects.
A boy pushes a box on a smooth floor, and it moves far. He then pushes the same box on a rough carpet, and it stops quickly. What can he infer from this observation?
The box moves faster on rough surfaces.
Gravity is weaker on the carpet than on the floor.
The rough carpet has more friction than the smooth floor.
I own a bicycle, which is an example of a complex machine. Which simple machines work together in a bicycle?
Pulley and lever
Wedge and lever
Wheel and axle and screw
Someone drops two identical balls from the same height—one on Jupiter and one on Mercury—how will they fall differently?
Both will fall at the same acceleration.
The ball on Jupiter will float because gravity is stronger.
The ball on Mercury will fall slower because its gravity is weaker.
A fireplace feels warm and cozy during winter. What two forms of energy are being produced?
Light energy and Heat energy
Sound energy and Electrical energy
Chemical energy and Mechanical energy
If the Earth’s gravity suddenly became stronger, how would it affect people and objects?
Everything would float in the air.
People and objects would become weightless.
Objects would fall faster, and people would feel heavier.
The boy kick the ball on a grassy field and kicks another ball on a cement road. What will be the result?
The cement has less friction than grass, therefore the ball will move farther.
The grass has more gravity than cement, therefore the ball will move nearer.
The cement has greater friction than grass, therefore the ball will move farther.
What two simple machines are combined in a sharpener?
Lever and pulley
Wedge and screw
Incline plane and wedge
