TED-ED: If matter falls down, does antimatter fall up? - Chlo_ Malbrunot

The video features a conversation between antihydrogen and a matter particle discussing their properties, the effects of gravity on small particles, and the imbalance of matter and antimatter in the universe. It explains how antihydrogen is created in labs and the significance of studying it. The video concludes with a reenactment of Galileo's experiment using matter and antimatter.

What is the main reason antihydrogen feels neutral?

• It has no mass.

• Its positron and antiproton balance out.

• It is not affected by gravity.

• It is made entirely of energy.

Why is it dangerous for matter and antimatter to come too close?

• They will explode into a new universe.

• They will become invisible.

• They will create a black hole.

• They will annihilate each other into energy.

According to the conversation, why is it difficult to detect gravitational force in charged particles?

• Because they are too small to measure.

• Because electromagnetic force is much stronger.

• Because they do not interact with gravity.

• Because they are always in motion.

What is the mystery regarding matter and antimatter in the universe?

• Why there is more antimatter than matter.

• Why there is more matter than antimatter.

• Why matter and antimatter do not interact.

• Why antimatter is heavier than matter.

How was antihydrogen created in the lab?

• By splitting a proton into smaller particles.

• By cooling down hydrogen atoms to absolute zero.

• By using a particle accelerator to create an antiproton and combining it with a positron.

• By combining a neutron and a positron.