Vocabulary
Energy and Charts
Transformations
Nature of Science
Miscellaneous
100
Energy of motion
Kinetic Energy
100
The following graph shows the results of an experiment done by four different groups. Each group took a different rubber band and recorded how far it stretched as they added weights to it. Which rubber band stretched the least as more weight was added?
Group 1
100
What is the change in energy as a roller coaster starts going down from the top of a hill
potential converting in to kinetic
100
Shawn will conduct a study of rolling a toy car down a ramp. Shawn plans to conduct a trial at four different ramp heights and record the distance the toy car travels beyond the ramp.
What is the independent variable of Shawn's experiment?
The ramp height
100
What are the 2 things that affect an object's kinetic energy?
mass and speed
200
Energy is not created or destroyed
Law of Conservation of Energy
200
The energy of 4 cars of different masses going 2 mph is recorded below. What is something we have learned about energy that this data can support?
Objects with more mass have more energy
200
What is the change in energy when you wind up a toy and place it on the table?
potential converting into kinetic
200
Daily Double!!!!
Raul wants to do an experiment where he investigates how the weight of a vehicle can affect it's speed going down a hill. Where should he do his experiment? What can he do to make sure his experiment will produce valid results?
He should do his experiment in a controlled environment (like a lab) so he can run multiple trials of vehicles with different weights and avoid any inconsistencies that may come with the regular world
200
When does a pendulum have the most potential energy?
When it is at the highest point of the swing
300
Stored energy
Potential Energy
300
A snail crawling across a leaf demonstrates which kind of energy?
Kinetic
300
What is the change in energy when you turn on a toaster?
electrical energy is converted into thermal energy
300
Spongebob wants to test whether his new, wider Jellyfish net will help him catch more jellyfish. What is the dependent variable in his experiment?
How many jellyfish he catches
300
Newton's first law of energy states that objects in motion stay in motion. Why isn't that the case for things on Earth?
On Earth, our gravity pulls things down which increases friction. Friction is responsible for stopping moving objects.
400
Energy changing from one form to another
Transformation
400
Daily Double!!!
A student lets a toy car roll four times down a 1 meter ramp. Each time he covers the ramp with a different material and times how long it takes the car to roll down it. The results are in the chart below. What is a conclusion that could be made from this chart?
Different surfaces affect how fast a car can go down a surface.
Surface W had the least amount of friction (it was the fastest)
Surface X had the most amount of friction (it was the slowest)
400
Friction is the result of what energy transformation?
kinetic energy converting into thermal energy
400
The following graph shows the results of an experiment done by four different groups. Each group took a different rubber band and recorded how far it stretched as they added weights to it. Which rubber band stretched the most as more weight was added?
Group 4
400
Justin notices that when he rides his bike downhill, he doesn't need to use the pedals. What is happening with his energy to allow for this?
The potential energy he has stored at the top of the hill is transformed into kinetic energy as he goes downhill
500
The part of an experiment that kept normal in order to compare the experimental group
Control group
500
At which point does the pendulum have the most kinetic energy?
When it is at the bottom going the fastest
500
What is the change in energy as a skateboarder starts to ride back up the other side of a ramp?
kinetic energy is converted into potential energy
500
Jennifer plants 4 sunflowers in the same area of her garden. 2 sunflowers are watered regularly as directed. The other 2 sunflowers are watered twice as much as directed. She measures the height of the sunflowers every 2 weeks.
What is a constant in her experiment?
They are all sunflowers
The sunflowers are all in the same area of the garden
500
Daily Double!!!
How does the law of conservation of energy apply to the changes in potential and kinetic energy of a pencil as it falls to the floor?
Potential energy is converted into kinetic energy as the pencil falls.