Gravity and Space Exploration Concepts

What keeps our feet on the ground on Earth?

• Wind

• Rain

• Gravity

• Sunlight

Who discovered that a force is needed to change an object's movement?

• Albert Einstein

• Galileo Galilei

• Sir Isaac Newton

• Nikola Tesla

What did Newton realize about gravity?

• It creates wind

• It makes apples fall from trees

• It causes rain to fall

• It makes the sun shine

What is one problem astronauts face in space due to zero gravity?

• No food

• Too much sunlight

• Lack of oxygen

• Space sickness

Who was the first person to walk on the moon?

• Michael Collins

• Neil Armstrong

• Yuri Gagarin

• Buzz Aldrin