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Force etc.

Force, Motion, Energy, and Resources

TermDefinition
Motion is described by an object’s direction and speed.
speed measured using distance and time
increases As mass is increased, the amount of force needed ______________.
more The greater the mass, the ___________ force needed to move the object.
friction Smooth, slippery items have less ______________.
slowing Friction changes the movement of an object by _________ it down.
kinetic All moving objects have _____________ energy.
potential this is stored energy; It could move, but it isn't.
heat Friction creates ________________________.
opposite Friction always works in the direction _____________________________ the direction the object is moving.
force A _______________ is any push or pull that causes an object to move, stop, or change speed or direction.
Net ________ force is a combination of all forces acting on an object.
balanced force A ___________________ ____________ remains unchanged. It has a net force of zero.
mechanical energy The energy an object has due to its motion and position/ requires movement ex: bicycle, scissors, and windmill
electrical energy The energy associated with flowing electrons
radiant energy energy that travels in waves; travels in straight lines; can bounce back and can bend ex: sunlight and flashlight
thermal energy The energy of heat through contact/ usually involves a temperature exchange ex: fire, toaster, or stove/oven
sound energy The energy of vibration/ travels in waves/ ex: bells and talking
renewable A _______________ resource is a resource that can be replenished naturally over time. Examples include water, wind, and solar
nonrenewable A _________________ resource is a natural substance that is not replenished with the speed at which it is consumed. Examples include coal, oil, and natural gas.
Created by: lkcasteel
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