Energy
Energy
Temperature
Motion
Random
100
What is an example of nuclear energy?
The sun
100
What is an example of chemical energy?
Batteries, food
100
In which state of matter do particles move the fastest and are the most spread out?
Gas
100
What is a reference point?
A reference point is the location to which you compare other locations.
100
When looking at a distance-time graph, how do you know that the speed is constant?
The line on the graph is straight
200
What is the difference between kinetic energy and potential energy?
Kinetic energy is the energy of an object in motion, potential energy is the energy of an object at rest.
200
Along with thermal energy, what is another type of energy that is produced by an oven?
Light, sound, mechanical (when opening and closing the oven door).
200
How is heat transferred between two objects? Does it go from the cold object to the hot object, or the hot object to the cold object?
Hot object to cold object
200
How do you calculate the speed of an object?
Divide the distance the object traveled by the time it took to travel the distance
200
True or false: The particles in a solid are not moving.
False - they are moving, they are vibrating next to each other
300
What are two types of electromagnetic energy?
X-rays, microwaves, ultraviolet rays (UV rays), radiowaves
300
What is an example of potential energy being converted to kinetic energy?
A soccer ball sitting in the grass is kicked by a student at recess. (Any object that starts at rest and then moves)
300
If the average kinetic energy of an object decreases, what happens to the temperature?
The object cools down / the temperature gets lower
300
A train travels a distance of 484 km in 4 hours. What is the average speed of the train?
121 km / hour
300
At what point on the graph is the object at rest?
B
400
What is the law of conservation of energy?
Energy cannot be created or destroyed
400
All types of energy can be classified into what two types of energy?
Kinetic and potential
400
What is the difference between thermal energy and temperature?
Thermal energy measures the total kinetic energy of the particles in an object, while temperature measures the average kinetic energy of the particles in an object.
400
Draw a distance-time graph that would show an object is speeding up
400
Draw a distance-time graph to represent the following situation:
You take your dog for a walk and you are walking at a constant speed. Your dog stops to sniff some flowers in a garden. After that, your dog sees a squirrel and starts running towards it. You have to stop and catch your breath for a few moments after the squirrel runs away. You realize that you are going to be late for school and run home with your dog.
500
Create your own example of an energy transformation.
Ex: Plugging in a lamp
Electrical --> thermal
500
Describe two energy transformations that occur when using a vacuum cleaner.
Electrical --> sound (the vacuum makes a noise)
Electrical --> mechanical (you move the vacuum)
Electrical --> light (there is a light on the vacuum)
Electrical --> thermal (sometimes the vacuum or the carpet will get warm)
500
Along with the kinetic energy of the particles, what else impacts the thermal energy of an object?
It's mass
500
What is the average speed of the graph?
0.875 km / hour.
500
Create a scenario to represent the distance-time graph
Ex: You are training for a race. You leave your home at 9:00 in the morning and run at a constant speed. After two hours, you decide to visit your friend for an hour. After visiting your friend, you continue training. You keep running away from home for another half hour, until you decide to turn around and return home.