Newton's First Law
What is another name for Newton's First Law?
Law of Inertia
Force equals ______ × ______.
Mass × Acceleration
For every action there is...
An equal and opposite reaction.
Which force pulls the rocket toward Earth?
Gravity
What is the pointed top of the rocket called?
Nose Cone
An object at rest stays at rest unless acted upon by what?
An Unbalanced Force
If mass increases but force stays the same, acceleration will...
Decrease
What is the action force during rocket launch?
The engine pushes gases downward.
Which force pushes the rocket upward?
Thrust
What keeps the rocket flying straight?
Fins
A rocket sits on the launch pad until ignition. Which law explains why?
Newton's First Law
Which accelerates faster with the same force: a heavy rocket or a light rocket?
The light rocket
What is the reaction force when a rocket launches?
The gases push the rocket upward.
Which force slows a rocket because of air resistance?
Drag
Where is the engine placed?
Engine mount/body tube
You stop pedaling your bike and eventually slow down. What force caused you to stop?
Friction
A rocket engine produces more thrust. What happens to acceleration?
Acceleration increases.
Name another example of Newton's Third Law besides rockets.
Walking, swimming, jumping, balloon, rowing, etc.
Which force helps airplanes stay in the air?
Lift
Which part holds the parachute until deployment?
Body tube
Why do passengers move forward when a car suddenly stops?
Their bodies continue moving because of inertia.
True or False: Doubling the force doubles the acceleration if mass stays the same.
True
Why does a balloon car move forward when air escapes?
Escaping air pushes backward while the balloon moves forward.
Name all four forces acting on a flying rocket or airplane
Lift, Gravity, Thrust, Drag
What part slows the rocket during landing?
The recovery system