Gravity Quiz

Who discovered gravity about 300 years ago?

• Isaac Newton

• Nikola Tesla

• Galileo Galilei

• Albert Einstein

What did Sir Isaac Newton see falling from a tree that led to his discovery of gravity?

• Banana

• Orange

• Apple

• Pear

What causes tides in the sea and oceans?

• Earth's rotation

• Wind

• Sun's heat

• Moon's gravitational pull

What determines the size of the gravitational pull between two objects?

• Shape of the objects

• Mass of the objects

• Temperature of the objects

• Color of the objects

Why does a stone fall on the ground faster than a piece of paper?

• Stone has more air resistance

• Paper has more mass

• Stone has more gravity

• Paper has less air resistance

What keeps planets orbiting around the Sun?

• Magnetic force

• Solar wind

• Planetary alignment

• Sun's gravitational pull

What is the Moon's gravitational pull compared to Earth's gravitational pull?

• 1/6

• 1/2

• 1/4

• 1/3

How much would a person weighing 150 pounds on Earth weigh on the Moon?

• 75 pounds

• 50 pounds

• 25 pounds

• 100 pounds

Why does the Moon rotate around the Earth and not float away?

• Moon's propulsion

• Moon's orbit

• Earth's gravitational force

• Earth's magnetic field

What is the invisible force that pulls objects back to the Earth?

• Friction

• Gravity

• Magnetism

• Electricity