Sir Isaac Newton 1642 – 1727 Laws of Motion Potential Energy stored energy Kinetic Energy Energy...
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Transcript of Sir Isaac Newton 1642 – 1727 Laws of Motion Potential Energy stored energy Kinetic Energy Energy...
• Sir Isaac Newton• 1642 – 1727• Laws of Motion
PotentialEnergy
stored energy
Kinetic Energy
Energy in motion
Force A push or pull
Forces cause objects to
Speed upSlow down
Change directionStay on the ground
Balanced Forces
no movement
Unbalanced Forcesmovement
Inertia keep on doing what it’s
doing
At rest- stay at restIn motion – stay in motion
… until another force acts on it!
MomentumThe amount of mass
and the speed at which that mass is
moving.
More mass + more speed =
more momentum
More momentum = difficult to stop
Gravity Gravity is a force that
attracts objects together.
The larger an object’s mass, the greater the gravitational
force
The greater the distance between two objects, the smaller the gravitational
force
On earth, this force attracts everything to Earth
Friction The force between two objects
in contact with each other.
Friction is a Force- Resistive force
- The force of friction works in the opposite direction of the force of motion
- Causes objects to slow down and/or stop
- Useful and wasteful friction
- Air Resistance- a larger surface area usually results in greater air resistance
From Glencoe Physical Science
Mass The amount of matter
The greater the mass…
- The more gravity pulls on it- The greater the friction
- The greater the force required to move it
- The greater the inertia- The more the momentum
Simple Machines
Help increase your force to make work easier.
Force and Motion Jeopardy