Energy Conservation
Energy Transformations
Food Web Vocabulary
Types of Waves
Energy Transfer & Waves
100
The Law of Conservation of Energy tells us that energy is neither ______________________________________.
created nor destroyed
100
At what point does a roller coaster have the most kinetic energy?
At the bottom of the biggest hill
100
In the food web provided, how many producers are there?
One
100
The type of wave created when the disturbance causing the wave vibrates parallel to the direction of energy travelling through the wave.
Longitudinal wave
100
What is the difference between an energy transformation and energy transfer?
In a transformation, the energy form changes. In a transfer, the energy form stays the same, but the energy transfers to a new object.
200
What is the ability to do work or cause change?
What is energy
200
What kind of energy transformation takes place in a campfire?
Chemical energy is transformed into heat and light energy
200
Give an example of 1 food chain from the example food web provided.
Plankton -> penguin -> seal
Plankton -> krill -> squid -> seagull
Plankton -> krill -> squid -> seal
Plankton -> krill -> seal
Plankton -> krill ->whale
200
The type of wave created when the disturbance causing the wave vibrates perpendicular to the direction of energy travelling through the wave.
Transverse wave
200
When there is a disturbance, such as a loud sound, the particles of matter do not move across the room. Instead, the energy transfers through _____________.
Waves
300
Since energy cannot be created or destroyed, it can only be _________ and ______________
transferred ; transformed
300
As something gets lifted higher off the ground, its _______ _______ increases
Potential Energy
300
In the food web provided, the seal is a ______________ consumer.
Tertiary
plankton (producer) > krill (primary consumer) > squid (secondary consumer) > seal (tertiary consumer)
300
Using the image provided, label the two waves.
https://docs.google.com/presentation/d/1zr9PSYtedjB1bbN_FEsfz2tkzz2l9lKl7ApWWHQ4r_o/edit?usp=sharing
A. longitudinal
B. transverse
300
A wave involves matter and energy. Which of these is transferred to the end of the wave?
Energy
400
On a roller coaster, there is friction on the track when the cart brakes towards the end. Energy is still conserved because the kinetic energy is transformed into ___________________.
Thermal energy?
400
Tabitha ate a turkey sandwich and an apple for lunch. Later that day, she ran 2 miles during soccer practice. Which of the following energy transformations occurred between lunchtime and the end of Tabitha’s run?
Chemical energy was converted to mechanical energy.
400
Explain an energy transfer that occurs in the food web provided.
Chemical energy form (organism 1) transfers to (organism 2) when the organism is eaten.
400
In a sound wave, the energy travels in the same direction that the particles vibrate. This is a _______________ wave.
Longitudinal
400
The type of energy that is formed when particles of solid, liquid or a gas vibrate.
What is sound energy?
500
Give two examples of systems where energy is conserved.
Roller Coaster
Food Web
Electrical Circuit
Photosynthesis
500
What energy transformations take place when you use a flash light?
chemical (in the batteries) --> electrical (in the wires) --> light (in the bulb)--> heat (comes from the bulb)
500
Explain two different energy transformations that take place in a food web.
Radiant -> Chemical (photosynthesis)
Chemical -> Mechanical (eating & moving)
Chemical -> Thermal (eating & making body heat)
500
In our waves unit, we completed two demonstrations.
1) The dominoes knocking each other down
2) The water in the container with a wooden block and ping pong ball.
Which type of waves were these?
1) longitudinal
2) transverse
500
Describe the type of wave that is present when you do "the wave" at a sporting event
A transverse wave - the people are moving up and down, but the wave travels sideways across the stadium (perpendicular)