Vocabulary
What is the ability to do work or cause change?
Energy
What state of matter are atoms moving slowest due to less thermal energy?
Solid
What happens to potential energy when mass decreases or increases?
Less mass = Less potential energy
More mass = More potential energy
Which has a higher temperature: an iceberg or a cup of hot coffee?
Cup of coffee
What is the math formula for finding speed?
Speed = Distance/Time
What is the energy of an object due to its motion?
Kinetic Energy
What state of matter are atoms moving the fastest due to having the most thermal energy?
Gas
What happens to kinetic energy when mass decreases or increases?
Less mass = Less kinetic energy
More Mass = More kinetic energy
Which as a higher amount of thermal energy: an iceberg or a cup of hot coffee?
An iceberg
If a car travels 400m in 20 seconds how fast is it going?
20 m/sec
What do we call energy that an object has due to its position, condition or chemical composition?
Potential Energy
In what state of matter do molecules have enough energy to slide past each other?
Liquid
What is the relationship between height and potential energy?
More height = more potential energy
If a medium and large pizza both come out of the oven at the same temperature, which one has more thermal energy? Explain your answer.
The large pizza because it has more mass
A plane travels 395,000 meters in 9000 seconds. What was its speed?
About 43.9 m/sec
Which type of energy is present in a rubber band that is being stretched?
Potential Energy
In what state of matter does the amount of thermal energy cause the molecules to be tightly packed together?
Solid
If we were dropping objects off of a roof, which would have more potential energy: a toaster or a cell phone? Explain your answer.
A toaster would have more potential energy because it has more mass.
Give an example of energy being transformed from one type to another.
One example: Food (potential) to a person's motion (kinetic) and heat (thermal)
You arrive in your kitchen 45 seconds after leaving your bedroom which is 90 meters away. How fast did you travel?
2 m/sec
Which type of energy is due to an object's height?
Gravitational Potential Energy
What 2 factors determine the amount of thermal energy something has?
Mass and Temperature
If we were rolling fruit back and forth to each other at the same speed, which would have more kinetic energy: a watermelon, orange, or kiwi? Explain your answer.
A watermelon because more mass means an object will have more energy.
What law says energy cannot be created or destroyed, it can only change forms?
The Law of Conservation of Energy
On a distance-time graph, what does a plotted line represent?
The speed of an object