1.
acceleration: A change in velocity
2.
chemical energy: the energy thatholds particles of matter together
3.
conservation of momentum: total momentum of an isolated system always remains the same
4.
effort: what is used to overcome resistance
5.
electrical energy: energy in the form of moving charges
6.
electromagnetic energy: a form of energy that is visible, also called radiant energy
7.
energy: the ability to make something happen. There are two general kinds of energy. there is potential energy,and kinetic energy.
8.
formula for acceleration: change in velocity ( final velocity - initial velocity) / time
9.
formula for momentum: momentum = mass x acceleration
10.
formula for newtons second law: force = mass x acceleration
11.
heat energy: the energy of moving particles that make up matter
12.
inclined plane: a simple machine for elevating objects
13.
kinetic energy: energy in motion
14.
lever: a bar that is free to turn around a fixed point called a fulcrum
15.
mechanical energy: the energy in moving things
16.
momentum: the property of all moving objects
17.
newtons first law: an object in motion will stay in motion and an object in rest will stay at rest unless acted on by an unbalanced force
18.
newtons second law: the relationship betweeen acceleration, force and mass
19.
newtons third law: for every action there is an equal and opposite reaction
20.
nuclear energy: energy stored in the nucleus of an atom released when atom is split
21.
potential energy: stored energy
22.
power: the amount of work done per unit of time
23.
pulley: a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope
24.
resistance: what machines have to overcome
25.
screw: a , inclined plane wrapped around a cylinder
26.
simple machine: a device that makes doing work easier
27.
units for acceleration: m/s/s
28.
units for momentum: kg-m/s
29.
units of power: watt
30.
units of work: joule
31.
Velocity: the speed and direction of an object
32.
wedge: something solid that is usable as an inclined plane (shaped like a V) that can be pushed between two things to separate them
33.
wheel and axle: hoist so arranged that a rope unwinding from a wheel is wound onto a cylindrical drum or shaft coaxial with the wheel
34.
work: when a force moves an object a certain distance