Types of Energy
Which statement is true about energy?
A. All energy can only be transformed when it is in a chemical or mechanical form.
B. Energy is always conserved.
C. Energy is always lost.
D. All energy only comes from the Sun.
B. Energy is always conserved.
A. A skydiver pulls the cord for the parachute to slow the motion form landing.
B. A ball is thrown into the air and seems to stop in the air as it reaches its peak.
C. A child coasts downhill on a bicycle.
D. A car's brakes are applied to slow down for a traffic light.
A ball thrown into the air and seems to stop in the air as it reaches its peak.
What is the term for how much matter is in an object?
Mass
This is the transfer of heat energy through touch
Conduction
This Law says energy is not created or destroyed.
Law of Conservation of Energy
A student listens to the radio while doing homework. Which form of energy conversion occurs in the radio?
A. Electrical to chemical energy
B. Electrical to heat energy
C. Electrical to mechanical energy
D. Electrical to sound energy.
D. Electrical to sound energy.
This is the energy of Motion
What is Kinetic Energy
What is Speed?
Distance over Time
Distance/Time
This is the transfer of heat through a fluid. It involves Heat rising and cold falling.
Convection
If an objects speed doubles how much will its kinetic energy increase?
quadruple.
Mrs. Jones needs to purchase an object from the home improvement store that will convert electrical energy into light energy when it is added to a circuit. What object should Mrs. Jones buy?
A Lamp/Lightbulb
What is Potential Energy?
Stored Energy
What is speed but has a direction?
This is the type of heat transfer from a campfire.
Radiation.
This notification comes out when a storm system has the makes of a tornado.
Tornado Watch
The Chesapeake Bay waterbird food web is made up of overlapping food chains. Into which form of energy will the gulls and terns mostly likely transform most of the chemical energy from the food they eat?
Mechanical Energy or Thermal Energy
What two factors are needed to calculate Gravitational Potential Energy?
Mass and Elevation (height)
Kinetic Energy
Why does the heat rise and cold fall in a fluid?
hotter objects are less dense than colder ones.
This notification comes out when a tornado has been spotted on the radar or the ground.
Tornado Warning
We get our energy from burning coal and gas. Explain every energy transformation that has to happen to get to the lights in the room right now.
Coal (chemical potential energy) to thermal to mechanical (the rotation of the generator) to electrical to solar (light)
A basketball player shoots a basketball into the air at an arc. The ball goes through the basket and lands on the ground. At which point is the gravitational energy at its greatest?
When the ball reaches the top of the arc.
If we increase mass, which energy is increased? Potential or Kinetic Energy
Both
A boy drops an ice cream cone on a cement sidewalk on a hot, sunny day. The ice cream begins to melt soon after hitting the sidewalk. What is causing the ice cream to melt? Use Conduction, Convection, and Radiation.
Conduction and Radiation
This factor is the nonliving things in an ecosystem.
abiotic factor