NEW
Font size
WorksheetsGravity Basics
Total questions: 50
Worksheet time: 25mins
What force keeps us from floating away on Earth?
Magnetic force
Gravitational force
Frictional force
Electrical force
The gravitational force depends on:
Shape and color
Mass and distance
Temperature and speed
Volume and density
If you drop a stone and a ball together in a vacuum, which lands first?
Stone
Ball
Both at the same time
Neither
The greater the mass of an object, the __________.
Stronger its gravity
Weaker its gravity
Faster it moves
Lower its temperature
As two objects get closer, gravitational force:
Weakens
Remains constant
Strengthens
Disappears
Which of the following is created by gravitational attraction?
Mass
Weight
Volume
Density
Which unit measures the strength of gravity on Earth?
Kilograms (kg)
Joules (J)
Newtons per kilogram (N/kg)
Liters (L)
Who first explained the laws of motion and universal gravitation?
Albert Einstein
Galileo Galilei
Sir Isaac Newton
Nikola Tesla
On Earth, every 1 kg of mass weighs about:
1 N
6 N
10 N
100 N
An astronaut with a mass of 60 kg weighs how much on Earth?
60 N
600 N
100 N
360 N
On the Moon, gravity is about __________ of Earth’s gravity.
One-half
One-third
One-fourth
One-sixth
Why do astronauts weigh less on the Moon?
Moon has less mass
Moon spins faster
Moon has no atmosphere
Moon’s rocks are lighter
Which factor would increase your weight on Earth?
Eating food
Stronger gravity
Walking uphill
Breathing faster
If Earth suddenly doubled its mass, your weight would:
Stay the same
Double
Halve
Disappear
If you climb a tall mountain, your weight slightly decreases because:
Air is thinner
Gravity is weaker further from Earth’s center
Mass decreases
Muscles tire
If you stand on Jupiter, your weight will be:
Less than on Earth
More than on Earth
Same as on Earth
Zero
The pull between Earth and the Moon mainly causes:
Rainfall
Ocean tides
If the Moon were twice as far from Earth, tides would:
Become stronger
Become weaker
Stay the same
Disappear
What keeps the Moon moving around Earth instead of flying off?
Wind
Earth's gravity
Sunlight
Friction
Which planet has the strongest gravitational pull?
Mars
Mercury
Jupiter
Venus
Why do satellites stay in orbit around Earth?
They have engines on always
They balance speed with Earth's gravity
They are attached by invisible strings
Solar panels push them
The International Space Station orbits Earth because:
No gravity acts there
Its forward motion balances its fall
It floats away naturally
Astronauts push it
If the Space Station suddenly lost its forward speed, it would:
Orbit forever
Fly away
Fall back to Earth
Stop moving
Which example shows gravity acting at a distance?
Magnet attracting a pin
Sun keeping planets in orbit
A car braking
A chair sliding
Why do astronauts float in the Space Station?
There is no gravity in space
They are in free fall with the Station
Their suits are lighter
They have no mass
Which of these is NOT a problem caused by weightlessness?
Bone weakening
Muscle loss
Loss of mass
Balance issues
Why do astronauts strap themselves to beds while sleeping?
To stay warm
To prevent floating away
To save oxygen
To reduce muscle loss
Which mineral is lost from astronauts’ bones in space?
Iron
Calcium
Sodium
Potassium
Which daily activity is most necessary to reduce weightlessness effects?
Eating
Exercising
Sleeping
Talking
After long stays in space, astronauts often need:
Special sunglasses
Long rehabilitation
Extra food
New suits
A ball has a mass of 10 kg. Its weight on Earth is:
10 N
100 N
1,000 N
10,000 N
On a planet where gravity is 20 N/kg, the weight of a 2 kg rock is:
2 N
20 N
40 N
200 N
If Earth’s gravity became weaker, people would:
Weigh more
Weigh less
Have more mass
Have no mass
The gravitational pull between two classmates is:
Zero
Tiny but real
If you drop a hammer and a feather on the Moon, they:
Hammer falls faster
Feather falls faster
Fall together at same speed
Neither falls
Why do heavier and lighter objects fall at the same rate in a vacuum?
Gravity pulls all masses equally
Air helps them
Weight cancels gravity
Light objects speed up
Which situation shows gravity in action without touching?
Throwing a ball upward
Kicking a ball on the ground
Pushing a chair
Pulling a drawer
Which everyday activity would feel most different if Earth’s gravity were half as strong?
Eating
Walking and jumping
Breathing
Thinking
What keeps the Moon in orbit around Earth?
Its mass
Earth’s gravity
The Sun’s light
Lack of air
What keeps planets revolving around the Sun?
Friction in space
The Sun’s gravity
Heat from the Sun
Their own spin
Why does a ball roll downhill on a slope?
Because the slope pushes it
Because gravity pulls it downward
Because the ball is lighter
Because air pushes it
When you pour water into a glass, which force makes the water fall down?
Magnetic force
Friction
Gravity
Air pressure
Why do apples fall from trees?
The tree pushes them down
Earth’s gravity pulls them
They lose their mass
Wind always pushes them
What prevents tall buildings from floating away into space?
Their heavy materials
Earth's gravity
Air pressure
Sunlight
Why do raindrops fall from clouds to the ground?
They are pushed by wind
Gravity pulls them toward Earth
Clouds are too heavy
Air pressure pushes them
When you jump into a swimming pool, why do you come back down into the water?
Air pushes you
Gravity pulls you down
Water attracts you
Muscles get tired
Why do swings come back down after going up?
The seat is heavy
Gravity pulls them back
Chains pull them
Air pushes them
Why do leaves fall off trees in autumn?
They lose color
They lose water
Gravity pulls them down
Wind always pushes them
Why do you feel pressed into your seat during a roller coaster drop?
Air pushes harder
Gravity pulls you down quickly
The seat becomes heavier
Speed disappears
Why do football players aim the ball upward when kicking long shots?
To avoid friction
To balance gravity pulling the ball down
To increase mass of the ball
To make the ball lighter
