Rocket science

What was the main purpose of the Bumper 2 rocket?

• To launch artificial satellites

• To test rocket systems and study the upper atmosphere

• To send astronauts into orbit

• To complete directly with the soviet Union

What physical principle explains how rockets move?

• Theory of relativity

• Newton's third law of thermodynamics

• Third law of motion

• Law of conservation of energy

What causes the thrust of a rocket?

• Rotating propellers

• Expelling gas at high speed in the opposite direction

• Solar energy

• Earth's magnetic field

What aerodynamic feature helps reduce air resistance on rockets?

• Rough surfaces

• Flat edges

• Large square fins

• Pointed nose cone and smooth surfaces

Which of the following is NOT a physical requirement for becoming an astronaut?

• Correctable 20/20 vision

• Ability to pilot a fighter jet

• Height between 62 and 75 inches

• Blood pressure below 140/90 while seated

What made rockets reach such high altitudes like almost 250 miles?

• Space elevators

• Two-stage rocket systems like the Bumper 2

• Jet engines

• Solar panels

What is the role of the nozzle in a rocket?

• To store fuel

• To launch satellites

• To cool down the rocket

• To direct expanding gases to generate thrust

What type of flow is promoted by a smooth rocket shape?

• Turbulent flow

• Laminar flow

• Irregular flow

• Vortex flow

Why are astronauts trained in microgravity environments before a mission?

• To learn how to pilot a rocket

• To increase muscle strength

• To adapt to movement without gravit

• To simulate lunar gravity for walking exercises

How did the launch of Sputnik I influence global dynamics?

• It ended the Cold War

• It delayed further U.S. space missions

• It intensified political and scientific competition

• It replaced all terrestrial communication systems