Fusion rocket engines speed trip to Mars

Fusion rocket engines speed trip to Mars

Assessment

Interactive Video

Science, Other, Physics

11th Grade - University

Hard

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The video explains a fusion rocket that could transport a crew to Mars in 30 to 90 days. The rocket pulses once per minute, expelling exhaust at 30 km/s. Solar energy charges capacitors to power the rocket's magnets. Each pulse crushes lithium rings around plasma, creating thrust. The rocket is active for 10% of the trip, half for acceleration and half for deceleration. Unlike chemical rockets, the fusion rocket's fuel is only 50% of its mass, compared to 98% for a Saturn V.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How long could a fusion rocket take to transport a crew to Mars?

10 to 20 days

30 to 90 days

200 to 300 days

100 to 150 days

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the speed of the exhaust exiting the fusion rocket's nozzle?

40 kilometers per second

30 kilometers per second

10 kilometers per second

20 kilometers per second

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What powers the magnets in the fusion rocket?

Hydroelectric energy

Nuclear energy

Wind energy

Solar energy

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What occurs during each pulse of the fusion rocket engine?

An endothermic reaction

No reaction

An exothermic reaction

A neutral reaction

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What percentage of the fusion rocket's mass is taken up by lithium fuel?

10%

75%

25%

50%