Catch a gravitational wave

What did scientists announce they detected in Washington D.C. during Gravity Week?

• Gravitational waves

• Electromagnetic waves

• Strong nuclear forces

• Weak nuclear forces

Who first wrote about gravity and believed heavier objects fell faster than lighter ones?

• Aristotle

• Galileo

• Isaac Newton

• Albert Einstein

What did Galileo discover about the speed of falling objects?

• Heavy and light objects fall at the same speed

• Heavy objects fall faster than light ones

• Light objects fall faster than heavy ones

• Objects fall at random speeds

What is the main function of LIGO?

• Detect gravitational waves

• Measure electromagnetic forces

• Study the motion of planets

• Analyze air resistance

What did Einstein's General Theory of Relativity describe gravity as?

• Warping of space and time

• A universal law of attraction

• A mysterious invisible force

• Constant acceleration