Space X Launch

What law does rocket propulsion follow?

• Newton's first law: a body remains at rest or in uniform motion in a straight line unless acted upon by a force.

• Newton's second law: that a body's rate of change of momentum is proportional to the force causing it.

• Newton's third law: for every action there is an equal and opposite reaction.

• Newton's fourth law

What kind of chemical reaction gets hot gases shooting out of the business end of a rocket with enough velocity to unshackle it from Earth’s gravity?

• Decomposition reaction

• Single replacement reaction

• Combustion reaction

• Synthesis reactions

What element is the lightest element and is used to fuel the main engines?

• helium

• hydrogen

• nitrogen

• neon

Why can't the rocket be loaded with propellant until a few hours before launch?

• the cryogenic hydrogen gas and oxygen gas will evaporate quickly

• It won't look pretty

• It's to heavy

• You can load it whenever you want

What is formed when the hydrogen reacts explosively with oxygen ?

• Hydrogen peroxide

• Ammonia

• Water

• Bleach

Is this a balanced equation: 2H₂ + O₂ = 2H₂O + Energy

• Yes

• No

What element fuels solid rocket boosters? ( It is the most abundant metal on earth, and it is very reactive.)

• oxygen

• hydrogen

• alumnium

• sodium

What is ammonium perchlorate used as?

• A Fuel

• An Oxidizer

• An Insulator

• Not used in rockets

How hot does the inside of the rocket get?

• 500 degrees Fahrenheit

• 5,000 degrees Fahrenheit

• 1,000,000 degrees Fahrenheit

• 20 degrees Fahrenheit

What is the name of the company that launched the falcon 9 rocket on Saturday?

• Space X

• Virgin Galactic

• ROSCOSMOS

• The Rebel Alliance