Show:
MATTER
LAWS OF MOTION
DESCRIBING MOTION
ENERGY
WAVES
100
this occurs when there is a change in speed
acceleration
100
gravity and magnetism are examples of ? forces
non contact
100
if there were no friction, a moving object would keep ?, even if no other force were applied to it.
moving
100
this type of energy is released when nuclei split ?
nuclear energy
100
waves from the sun do not require a ? for transmission
medium
200
the measure of gravitational force on an object?
weight
200
only ? forces change an objects velocity
unbalanced
200
A ball held in a person's hand does not move, even though gravity is acting on it because ?
of balanced forces
200
this is stored in a stretched rubber band ?
elastic potential energy
200
? can carry more information than radio waves because their wavelength is shorter (more energy)
microwaves
300
? and weight are related to each other
mass
300
In a force pair, one force is the action force and the other is the ?
reaction force
300
What will happen to an object at rest if the net force acting on it is zero
it will stay at rest
300
this energy is transferred by heat ?
thermal
300
broadcasters can use digital signals to transmit ? waves
radio
400
the parts of a ? can often be separated by physical means
mixture
400
According to Newton's third law, when an object applies a force on a second object, the second object applies a ? force in response
equal
400
an objects distance and direction from a reference point is called ?
position
400
this energy is used when your body moves ?
chemical
400
a microwave oven changes ? energy into radiant energy
electrical
500
describe the particles in a solid
tightly packed together and vibrating in place
500
According to Newton's 2nd law A=F/M. what do the variable represent
A= ACCELERATION F= FORCE M= MASS
500
the process of changing position is called ?
motion
500
this is carried by electromagnetic waves ?
radiant
500
broadcasters can use digital signals to transmit ? waves
radio