Newtons Laws
If an astronaut throws a ball in space, when will the ball stop?
It will stay floating
the presence and/or flow of electric charges
electricity
all waves must have WHAT to travel?
energy
moving organisms need energy for ____
growth
what are substances?
matter that is always made up of the same combination of atoms.
Momentum depends on ___ and ____
mass and velocity
electricity is a flow of ____ around a circuit
electrons
what doesn't a wave transport?
matter
what is potential energy?
is stored energy due to an object’s position.
It can be identified as either an ____ or _____
element or compound
what happens when a moving object hits another moving object?
The momentum is transfered
The flow of charged particles is an ___
electric current
two types of mechanical waves
Transverse waves and Longitudinal waves
A waterfall, a suspension bridge, and a falling snowflake is an example of what?
gravitational potential energy.
Compounds can only be broken down by ___ means
chemical
what does momentum equal?
mass times velocity
What are the three basic parts needed for a circuit
energy source, load, wire
What does mechanical waves require?
a medium
The faster an object moves the ______
more kinetic energy it has.
A mixture is made when two or more substances are combined _____
physically
what is the SI unit for acceleration?
m/s/s OR m/s²
Load examples:
A transverse wave medium moves in a direction _____ to the direction that the wave moves.
perpendicular
form of energy-
mechanical, chemical, thermal, electrical.
mixtures can be what?
solid, liquids or gas.