Model Rockets

Rockets are able to lift off and travel because of

• thrust
• speed
• velocity
• escape veocity

What is the Definition of Rocket?

• A type of engine or a vehicle that uses this type of engine
• A cylinder aircraft
• A vehicle exactly like a jet
• German Ente(duck)-first rocket powered aircraft

__________ is a force and is the product of mass times the acceleration of gravity.

• Force
• Mass
• Acceleration
• Weight

__________ means a change in motion.

• Force
• Mass
• Acceleration
• Inertia

__________ means a change in motion.

• Force
• Mass
• Acceleration
• Inertia

__________ is related to action.

• Action
• Reaction
• Balance
• Friction

Newton’s first law is sometimes referred to as __________.

• Newton's first law
• Newton's law of inertia
• Newton's law of motion
• Galileo's law of inertia

What does a rocket need to lift off?

• Exertion of an unbalanced force
• Unbalanced force
• Exertion of a balanced force
• Balanced force

The amount of thrust (force) produced by the rocket engines needs to be __________ than the force of gravity holding it down.

• Equal
• Greater
• Less

When a rocket reaches space, atmospheric drag, also known as __________ is greatly reduced or eliminated.

• Accelerates
• Unbalanced
• Balanced
• Friction