Potential Energy Energy that is stored up Stretched rubber band, gasoline Kinetic energy Energy in motion Moving a skateboard, blowing wind Sound energy Vibration of particles Car horn Electromagnetic energy Transmitted as EM waves and Light, x-rays, microwaves produced by vibrations of electrically charged particles Chemical energy Energy stored in chemical bonds of Food, matches compounds Thermal energy (heat) Energy of an object due to motion of fire, rubbing hands together, ice its molecules melting Electrical Energy Power created by electrons Batteries, electricity Cut and paste in the and section of foldable “Forces Motion” an object at rest tends to stay at rest, and an object in Ex: ball rolling will keep rolling ’s 1st Law motion tends to stay in motion, unless acted upon by until the unbalance force(friction) an unbalanced force stops it 2nd Law Force=mass x acceleration More force needed to move a ’s bowling ball than a tennis ball 3rd law The third law says that for every action (force) there If you push on a an = ’s wall, there’s is an equal and opposite reaction (force). and opposite force pushing back on you. Simple Machine Description Example Lever has a bar that pivots at a fixed point Shovel, seesaw, baseball bat called a fulcrum Pulley consists of a wheel over which a Elevator, rig on flagpole, window rope, chain, or wire passes blinds Wheel and axle A wheel with a rod, called an axle, Bike through its center lifts or moves loads Inclined plane Flat surface that is raised so that one Wheelchair ramp end is higher than the other Wedge an object with at least one slanting Ax, doorstopper side ending in a sharp edge, which cuts material apart Screw holds things together or lifts Screw, corkscrew materials
Potential Energy Energy that is stored up Stretched rubber band, gasoline Kinetic energy Energy in motion Moving a skateboard, blowing wind Sound energy Vibration of particles Car horn Electromagnetic energy Transmitted as EM waves and produced by vibrations of electrically charged particles Light, x-rays, microwaves Chemical energy Energy stored in chemical bonds of compounds Food, matches Thermal energy (heat) Energy of an object due to motion of its molecules fire, rubbing hands together, ice melting Electrical Energy Power created by electrons Batteries, electricity Simple Machine Description Example Lever has a bar that pivots at a fixed point called a fulcrum Shovel, seesaw, baseball bat Pulley consists of a wheel over which a rope, chain, or wire passes Elevator, rig on flagpole, window blinds Wheel and axle A wheel with a rod, called an axle, through its center lifts or moves loads Bike Inclined plane Flat surface that is raised so that one end is higher than the other Wheelchair ramp Wedge an object with at least one slanting side ending in a sharp edge, which cuts material apart Ax, doorstopper Screw holds things together or lifts materials Screw, corkscrew Cut and paste in the “Forces and Motion” section of foldable ’s 1st Law an object at rest tends to stay at rest, and an object in motion tends to stay in motion, unless acted upon by an unbalanced force Ex: ball rolling will keep rolling until the unbalance force(friction) stops it ’s 2nd Law Force=mass x acceleration More force needed to move a bowling ball than a tennis ball ’s 3rd law The third law says that for every action (force) there is an equal and opposite reaction (force). If you push on a wall, there’s an = and opposite force pushing back on you.