Antimatter Rocket Quiz

What is the primary advantage of using antimatter as a rocket fuel compared to chemical rocket fuel?

• It is cheaper to produce.

• It is more environmentally friendly.

• It can store significantly more energy.

• It is easier to handle and store.

How is antimatter stored to prevent it from coming into contact with matter?

• In a vacuum-sealed container.

• Using magnetic and electric fields.

• In a cryogenic chamber.

• By surrounding it with lead.

What happens when matter and antimatter meet in the reaction chamber?

• They annihilate and release pure energy.

• They produce a chemical reaction.

• They form a new element.

• They create a black hole.

What is the role of the parabolic photon sail in the positron thruster?

• To store antimatter safely.

• To cool down the reaction chamber.

• To generate electricity for the spacecraft.

• To focus gamma rays into a beam for thrust.

Why can't gamma rays be directly reflected by the photon sail?

• They are too weak to be reflected.

• They are absorbed by the sail.

• They are too small and pass through materials.

• They are too large to be reflected.

What process is used to make gamma rays larger so they can be reflected?

• Nuclear fusion.

• Thermal expansion.

• Compton scattering.

• Electromagnetic induction.

How can lost energy be recovered as thrust if most of it is lost as heat?

• By using a heat pump.

• By converting it into electricity.

• By heating a propellant and expelling it.

• By storing it in batteries.

What is the estimated amount of antimatter needed for a mission to Alpha Centauri?

• 2 million kilograms.

• 1 million kilograms.

• 500 tons.

• 700 tons.

What is a major challenge in storing large amounts of antimatter?

• Its high cost.

• Its tendency to decay quickly.

• Its extreme electrostatic repulsion.

• Its requirement for high temperatures.

What relativistic effect is experienced by the crew when traveling at 70% light speed?

• Time appears to speed up.

• Colors appear unchanged.

• Objects appear larger.

• Time dilation occurs.