Show:
Waves
Simple Machines
Force And Motion
Gravity
Matter & Energy
100
Any disturbance that transmits energy through matter.
What is a wave?
100
a device that makes work easier
What is a machine?
100
average speed equivalent to
What is total distance/total time?
100
a force of attraction between object that is due to their masses
What is gravity?
100
negatively charged particles that are found in the outter layer of atoms.
What are electrons?
200
a substance through which a wave can travel ?
What is a medium
200
machines decrease the amount of ______ and increase the amount of ________ being done
What is force, work?
200
acceleration can be represented on a graph showin _______ versus ________
What is Velocity, Time?
200
as mass increases ______________________ increases
What is gravitational force?
200
The Three States of mattter
What is solid, liquid, gas?
300
a wave with a larger ________ carries more energy than a wave with a smaller _________ does
What is Amplitude?
300
a comparison between a machine's work input and output
What is mechanical efficiency?
300
Friction is a _____ that opposes _____
What is force, motion?
300
gravitational force is strong when the distance between two objects is _______
What is small?
300
Stored energy
What is potential energy?
400
a lightwave passing at an angle into a new medium is _________because the _____ of a wave changes? (Two Diffrent Answers)
What is Refracted, Speed
400
Machines are not 100% efficient because some of the work done is used to overcome_______
What is friction?
400
Balanced forces produce ______________________ unbalced forces produce ______________________
What is No Change In Motion, A Change In Motion
400
gravitational force decreases as ____________ increase
What is distance?
400
the resistance of gas or liquid to flow
What is viscosity?
500
the change in the direction of a wave when it finds and opening?
What is diffraction?
500
In a first-class lever, the _______ is between the force and the ___________
What is fulcrum, load?
500
___________is caused by hills and valleys on the surace of two objects touching each other
What is friction?
500
_____ is a measure of the gravitational force on an object.
What is weight
500
a mixture that appears to be a single substance
What is a solution?