Newton's First
An object in motion stays in motion unless
A force is acted upon it
Acceleration
If you push on a wall, you move but the wall does not because of
It has a larger mass
This force pulls us down
Gravity
Law that explains how a rocket reaches space
Inertia is...
An objects resistance to move
What is Newton's 2nd Law?
F=ma
Hero's engine moves by...
Newton's third law equal and opposite forces
This force slows a rolling ball
Friction
Law that explains why we wear seatbelts
First
What forces can make an objects inertia change?
applied, gravity, etc.
If you increase the mass of an object with the same acceleration, the force will
Increase
Why does a ball bounce off the ground?
3rd law of motion equal forces
This force slows a parachuter
Drag
Speed and velocity are different because
Velocity has direction
What real world situation uses Newton's first law for safety?
Seatbelt..
Force will decrease if you decrease what
mass or acceleration
This force is against gravity
Normal
Velocity is defined as
Magnitude and direction
If you are traveling in space at 200mph east and your engine dies, will you slow down?
No
acceleration=
=m/F
What is Newton's Third Law?
Every force has an opposite and equal force/reaction
This force is 9.81 m/s2
Gravity
Law that explains why football players are fast and larger
2nd