Investigative Techniques "Rockets"

A rocket is blasting off the launch pad. Newton's law tells us that it will keep moving in a _______________line at a constant speed unless acted on by an outside ____________.

• loop, force

• straight, force

• curved, action

• circle, reaction

What is the term for the mass of an object times its velocity?

• Momentum

• Force

• Static

• Kinetic

This is the force that lifts the rocket off the ground.

• thrust

• inertia

• gravity

• drag

The force(s) that opposes the rocket's motion.

• inertia

• drag

• kinetic

• gravity and drag

This is the part of the rocket engine where hot gases come out.

• fins

• nozzle

• cone

• parachute

This device uses electricity to start the rocket fuel to burn.

• heat

• matches

• igniter

• black powder

This term means that speed is changing, like when the rocket lifts off.

• gravity

• Newtons

• velocity

• acceleration

When will the rocket reach its apogee?

• At its highest point.

• Half way to the highest point.

• When it returns to the ground.

• It won't ever reach its apogee.

These structures on the rocket make it stable in flight.

• nose cone

• fins

• parachute

• shock cord

What makes the parachute pop out when the rocket reaches its highest point?

• Clay cap

• Smoke & delay element

• The ejection charge.

• solid propellant