Rocket Mass Quiz

What main reason is the mass of a rocket important according to the text?

• A) A rocket with more mass uses less fuel.

• B) A rocket with less mass accelerates more quickly and has less gravitational force acting on it.

• C) A rocket with less mass is easier to transport.

• D) A rocket with more mass is more stable during launch.

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What is the benefit of minimising the mass of a rocket as mentioned in the image?

• A) To increase the complexity of the rocket.

• B) To make the rocket look more aesthetically pleasing.

• C) To make the rocket as efficient as possible.

• D) To make the rocket louder during launch.

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According to Newton's second law of motion, if the same force is applied to two objects, which object will have more acceleration?

• The object with more mass

• The object with less mass

• Both objects will have the same acceleration

• The object with more volume

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What is the effect of gravity on a vertically launched rocket with more mass?

• It increases the resultant force pushing the rocket upwards

• It decreases the resultant force pushing the rocket upwards

• It has no effect on the resultant force

• It reverses the direction of the thrust

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Why might some rockets be much bigger than others, even if rockets with less mass can speed up more quickly?

• Because bigger rockets can carry more fuel

• Because bigger rockets are more stable

• Because bigger rockets can reach higher speeds

• The text does not provide this information

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When was the first Space Shuttle launched? Use the text to know which shuttle is being asked of.

• 12 April 1971

• 12 April 1981

• 12 April 1991

• 12 April 2001

What change was made to the Space Shuttle's external tank in future missions to save mass?

• It was made smaller

• It was painted blue

• It was left orange instead of painting it white

• It was constructed with lighter materials

How much mass was saved by not painting the Space Shuttle's external tank white?

• 172 kg

• 272 kg

• 372 kg

• 472 kg

What does the payload of a rocket include?

• Only astronauts

• Only measuring devices

• Only satellites

• Measuring devices, satellites, spacecraft or astronauts

What is the propellant load of a rocket?

• The fuel needed for the return journey

• The fuel plus oxidiser needed to get a rocket into space or its desired location

• The external structure of the rocket

• The navigation system of the rocket

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