Matter
Matter is
anything that has a mass and volume
How is the periodic table of elements arranged?
by atomic number
Potential energy is energy that is
stored up energy
What kind of force cause motion?
unbalanced force
The magnetic field of a magnet is strongest
at both poles
Density Is
mass per unit volume
Which is smaller? A atom,proton,element ,molecule
Proton
Kinetic energy is energy of
motion
A chair on wheels being slid across floor or a shopping cart being pushed is an example of what type of friction
rolling friction
A glowing region when particles from the sun get past the magnetosphere is an
aurora
Why does ice floats in liquid water because ice
is less dense than water
Atoms of the same element may differ in their number of
neutrons
what is sound energy
energy from vibrations of matter
What is the force of attraction between all objects in the universe called
gravity
The magnetic variation of a compass is the smallest at the
equator
What is the density of an object that has a mass of 50 g and a volume of 10 ml?
5 g/ml
The atomic number for hydrogen is 1 its nucleus must contain
1 proton
A Turbines kinetic energy is converted to electrical energy by a
Generator
if a brick and a boulder are falling from a building and don't hit air resistance which will fall to the ground first
both
A compass needle points to the
earth's magnetic poles
Sometime cannot be seen but has a mass and take up a space.
Matter
Atoms of the same element that have the same number of protons but a different number of neutrons are called
isotopes
What is chemical energy
energy from chemical bonds
Why can't a car, plane, or bicycle stop immediately?
inertia
A solenoid with a magnetic material inside it is
an electromagnet