Read the Graph
Looking at the graph, what happened to the kinetic energy when we increased mass?
It increased
What relationship between mass and kinetic energy mass does our graph show? (Hint: Start your answer with this: The more mass...)
The more mass, the more kinetic energy.
What is wrong with this statement? The more mass, the less kinetic energy.
It should say the more mass, the MORE kinetic energy.
Which one would have more kinetic energy at the same speed: a full shopping cart or empty shopping cart?
Looking at the graph, what happened when we changed the number of magnets from zero to one?
The line went up (the kinetic energy increased)
Why does the class average matter more than one group’s data?
Because one group could make mistakes, but taking the average allows us to balance out those mistakes.
What is wrong with this statement? The more velocity, the less kinetic energy.
It should say the more velocity, the MORE kinetic energy.
Two students roll balls down the same ramp. One ball has more mass.
Which ball will have a greater effect on the cup?
The ball with more mass
Which statement is supported by the data:
- Increasing mass increases kinetic energy
- Increasing mass has no effect on kinetic energy
Increasing mass increases kinetic energy
If velocity stays the same but mass increases, what happens to the kinetic energy?
Kinetic energy will increase
What is wrong with this statement? A rollercoaster car that weighs 900 pounds has less kinetic energy than a rollercoaster car that weighs 500 pounds
It should say that a rollercoaster car that weighs 900 pounds has MORE kinetic energy than a rollercoaster car that weighs 500 pounds
If you wanted to increase the kinetic energy of an object, what two things can you increase?
Mass and velocity
Which mass moved the cup the least?
The car with zero added magnets
A student claims that if they add 3 magnets to a car, it will only push the cup 30 cm. How can you use this graph to prove them wrong?
You can show them that if they add more magnets, the kinetic energy will increase because that's the trend the graph shows.
What is wrong with this statement? We have to change BOTH velocity and mass to change kinetic energy
We only have to change velocity OR mass to change kinetic energy
A truck with a large, heavy trailer is driving down the freeway next to a small car. Which one has more kinetic energy?
The truck with the large, heavy trailer
If we added a car with 3 magnets, what would happen to our graph?
It would keep showing that the more mass, the more kinetic energy
If we made a graph that showed how speed affects kinetic energy, what would that graph look like?
It would look the same as the mass graph (kinetic energy would increase as velocity increases)
What is wrong with this statement? If a moving car has a mass of 1000 pounds it will have less kinetic energy that a moving car with 700 pounds.
If a moving car has a mass of 1000 pounds it will have MORE kinetic energy that a moving car with 700 pounds.
A wind turbine generates kinetic energy. What two things can we change about the blades to make it generate more kinetic energy?
Increase the mass of the blades and make the blades spin faster