Kinetic/Potential
Energy in motion
kinetic energy
True or False: Energy cannot be created or destroyed, only transferred.
TRUE
The height from the resting line to the crest or trough
amplitude
Light is a form of
energy
What do plants need for photosynthesis?
CO2, sunlight, water
stored energy
potential energy
A jogger walks for 3 minutes then sits down to rest. The jogger begins to run again.
Describe the transfer of energy that happens.
Kinetic--> potential--> kinetic
The higher the frequency, the ______ the energy.
greater
Define:
Transparent, translucent, opaque
-light easily comes through, we can see clearly through
-some light passes through, we can kind of see through
-no light passes through, we cannot see through
An organism dies and is quickly buried in sediment. What may scientists find when they dig up the sediment millions of years later?
a fossil of the organism
When does a bike have the most potential energy: at the bottom of a hill, at the top of a hill, flying down the hill.
At the top of the hill
What stores energy from the sun?
Battery, lamp, plant, smoke alarm
plant
A student counts the number of waves that pass by each second while observing a simulation of a light wave. What is the student measuring?
frequency
What happens when we see a rainbow?
The raindrops act as tiny prisms. We see a rainbow because white light is being REFRACTED and arranged by wavelength.
How do food chains show the flow of energy in an ecosystem?
Food chains show the source of energy and food for each organism included.
A student kicks a soccer ball into the goal. The speed of the ball is reduced when it hits the net. What conclusion can be drawn about the KINETIC energy of the ball upon hitting the net?
The kinetic energy decreased because its speed decrease.
Give an example of something that converts electrical energy to light energy.
Lamp, smart board, projector etc
Many devices use waves to communicate with someone in another location. What devices fit this category?
radio & computer
microwave & cell phone
radio & computer
A student observes that the grass is green. Why does the student see green?
Light is hitting the grass. All wavelengths of light are being absorbed EXCEPT green which is being reflected.
Which process makes sediment?
weathering and erosion (water breaking rocks into smaller pieces)
A student is pushing a toy car down a ramp. If the student places the car on the ramp again and increases the force used to push the car what will happen? Why?
The kinetic energy will increase and the toy car will go faster.
Give an example of stored energy changing to another form.
ball at the top of a hill starts to roll down, battery creating sound in an alarm
Go to the board. Draw and label a wave with a short wavelength. Include line of equilibrium, crest, trough, wavelength, and amplitude.
on board
When an object looks distorted through a glass or through water what is happening?
Light is bending and being refracted so the object may appear bendy or closer than it actually is.
A shark tooth is found in the middle of the desert. What can be concluded about this area?
The desert used to be under water. Over hundreds or thousands of years, the ecosystem transformed and became dry and arid.