Energy
Force, Mass, Motion
Waves
Electric and Magnetic Forces
Structure and Properties of Matter
100
Law of Conservation of Energy
energy cannot be created or destroyed, it can only be transformed
100
Describe the distance between each interval
AB: stationary
BC: constant speed
CD: stationary
DE: accelerating
100
How does sound from instruments reach the audience?
through the air as a medium
100
When two objects have opposite charge (+ and -), they are
Attracted to each other
100
"The ball is red."
What type of change or property is the statement above?
Physical Property
200
2 Factors
1) potential
2) kinetic
1) mass & height
2) mass & speed
200
At what time does the object change direction?
30 minutes
200
What is the relationship between wavelength, frequency, and energy?
Wavelength decreases
Frequency increases
Energy increases
200
How are gravitational field lines represented around Earth?
Pointing towards the center
200
What charges do the following subatomic particles have:
Protons
Neutrons
Electrons
Positive Charge
No Charge
Negative Charge
300
3 types of heat transfer
conduction; convection; radiation
300
Newton's 3 Laws
1) Law of Inertia
2) Law of Acceleration
3) Action-Reaction Pairs
300
Describe what happens as light passes from medium 1 to medium 2.
light bends
300
Draw electric field lines for opposite charges.
300
Compound
400
Type of energy at point C
potential energy
400
Which requires more force to push, and why?
Car or Bicycle
A car requires more force because it has more mass.
400
Which waves transmit the least energy?
Visible Light
400
What can you tell from the interacting magnetic poles in the picture
The poles are alike so they are repelling
400
Law of Conservation of Matter
Matter cannot be created or destroyed; it just changes forms.
500
Energy transformations in using a hair dryer.
electrical -> thermal -> sound -> mechanical
500
Net force of the object (and direction)
20N right
500
Why does a green leaf look green?
The leaf reflects green light and absorbs other colors
500
Differenece between gravitational fields, electrical fields, and magnetic fields?
Gravitational fields can only attract, electrical and magnetic fields can both attract and repel.
500
Is the following chemical equation bala
Yes