Matter
Atoms and Chemical Reactions
Force and Motion
Energy
Magnetism and Waves
100
What are the three states of matter?
Solid, liquid, and gas
100
What element is in group 14, period 6?
Pb, lead
100
What is the unit for force?
newtons
100
What are the two types of potential energy?
Elastic and gravitational
100
A compass always points which direction?
Geographic North or Magnetic South
200
The change from a gas to a liquid.
condensation
200
How many valence electrons does Sodium (Na) have?
1
200
What is the net force?
15 N <--- and ----> 5 N
10 N <---
200
What has more potential energy: the top of a roller coaster or the bottom of a roller coaster?
the top of a roller coaster
200
Magnetic fields flow which direction?
from north to south
300
Melting, dissolving, and breaking are all what type of change?
physical change
300
What are the two types of bonding?
ionic bonding and covalent bonding
300
An object in motion will stay in motion and an object at rest will stay at rest unless acted on by an unbalanced force.
Newton's First Law
300
What type of energy is this?
elastic potential energy
300
What are the three types of mechanical waves?
longitudinal, transverse, and surface waves
400
What are the two types of mixtures?
homogeneous and heterogeneous
400
A chemical reaction that releases energy in the form of heat is called...
exothermic reaction
400
What are the four types of friction
rolling, static, fluid, and sliding
400
What has more kinetic energy:
A car traveling at 5 mph
A bike traveling at 5 mph
the car, it has more mass
400
What is another word for a medium?
a material, matter, liquid, solid, gas
500
The change from a solid straight to a gas.
sublimation
500
What is this called?
4 H + 2 O2 --> 2 H2O
Chemical equation, chemical reaction
500
The rate at which velocity changes?
acceleration
500
How do you determine the total energy of an object?
Potential energy + kinetic energy
500
What is the trough of a wave?
The lowest point of a transverse wave