Forces on a Bottle Rocket

The topmost part of the rocket is called the _______.

• Cone

• Fin

• Nozzle

• Body

According to Newton's Third Law, what happens for every action?

• There is no reaction

• There is an equal and opposite reaction

• There is a similar reaction

• There is a delayed reaction

The formula for rocket propulsion thrust is _________.

• Thrust = Mass Flow x Velocity

• Thrust = Mass x Acceleration

• Thrust = Force x Distance

• Thrust = Power / Time

According to Law 2, The Law of Proportionality, what is the relationship between the acceleration of an object, the net force, and its mass?

• Acceleration is directly proportional to the net force and inversely proportional to its mass.

• Acceleration is inversely proportional to the net force and directly proportional to its mass.

• Acceleration is directly proportional to both the net force and its mass.

• Acceleration is inversely proportional to both the net force and its mass.

Fill in the blank: The equation that expresses the Law of Proportionality is _________.

• F = ma

• V = IR

• P = IV

The greater the thrust, the faster your rocket will accelerate.

• True

• False

Fill in the blank: Acceleration = Force (thrust) / _______.

• Mass

• Velocity

• Distance

• Time

If you fire the rocket vertically, its acceleration will be a bit less since it will struggle against which force?

• Thrust

• Gravity

• Friction

• Air resistance

If a rocket moves vertically, there are TWO forces: the upward thrust and the downward pull of gravity, which is the rocket’s weight. The upward force acting on a vertically moving rocket is called _______.

• thrust

• drag

• friction

• momentum

Which formula is used to calculate the weight of an object?

• Weight = mass x gravitational acceleration

• Weight = mass / gravitational acceleration

• Weight = mass + gravitational acceleration

• Weight = mass - gravitational acceleration