Isaac Newton
Isaac Newton made how many laws?
3
A force is described as a _______ or a ________
push / pull
Friction occurs when
Two surfaces / objects touch
What supposedly fell on Isaac Newtons head?
Apple
Gyroscopes are used on
Airplanes, spaceships, boats, hubble telescope
His laws were about...
Motion
A pencil in a pencil cup is (balanced or unbalanced)
balanced
Friction causes
Heat
When is this statement not true "What goes up must come down"
In space
What are gyroscopes used for
Navigation, measuring angular acceleration, stabilization, gyrocompass
What is his first law?
An object at rest will stay at rest and an object in motion will stay in motion unless acted on by an outside force.
A cannonball shot from a cannon is (balanced or unbalanced)
Unbalanced
What kind of friction is air resistance?
Fluid
What force do spinning objects create that allows them to defy gravity?
Centrifugal force
What types of friction would an olympic high diver encounter?
Fluid, static
Newton's third law states that
For every action there is an equal and opposite reaction.
A crate of supplies from a plane with a parachute being air dropped is (balanced or unbalanced)
Balanced
How can you reduce friction?
Smooth surfaces, lighter force, smaller mass, lubrication, roll instead of slide, etc.
What is the term for the speed needed to escape Earth's atmosphere?
Escape velocity
Lineman in football are usually larger than all other football players. Why is this?
Their larger mass, and therefore larger inertia, makes them more difficult to move. They form a wall to protect the ball from the other team.
The second law of motion states that
Force = Mass X Acceleration
A plane flying thousands of feet off the ground is (balanced or unbalanced)
unbalanced
If there is no friction, is there inertia?
Yes
How can artificial gravity be achieved in a spaceship?
Constant rotational energy or constant forward thrust.
There's a scene in Wall E where he uses a fire extinguisher to propel him space. Is this possible? Why or why not?
Depending on his overall mass and the strength of the thrust, yes. In space you can propel yourself and stay moving that direction.