WorksheetsKinetic/Potential Energy and Scientific Design Unit 1
Total questions: 15
Worksheet time: 8mins
Students were challenged to build balloon racers in their science class. The goal was to design a racer that would travel the fastest. They all were given the same materials. What is the purpose of the experiment
To show that balloons can store energy
To design the fastest racer
To be creative in making a design
To find new materials in creating your design
A student built a prototype balloon racer for class. What is the best description of a prototype
A model built to test a concept
A final product that has been thoroughly tested
A blueprint for how to build a car
The materials needed to build the car
Why do we only change one thing at a time when testing a prototype?
Making multiple changes will get us the best result quicker?
It is okay to have multiple independent variables in an experiment but you must have only 1 dependent variable
By making only one change, we know our results were caused by that one change we made.
We shouldn't make any changes to a prototype.
Which is not a force acting on the balloon race cars
Friction
Gravity
Air propulsion from the balloons
Mass
Which is a true statement about potential energy
If an object is moving, it must have potential energy
If a object is sitting still, it must have potential energy.
All objects have gravitational potential energy.
Objects with potential energy have stored energy.
In the diagram, what is the greatest value for potential energy
200
100
50
0
In the diagram, what is the lowest value for kinetic energy
100
75
50
0
What happens to the kinetic energy as the potential energy decreases.
Kinetic energy decreases
Kinetic energy increases
Kinetic energy remains constant
Kinetic energy increases, then decreases
If you double the mass of an object without changing its speed, what happens to the kinetic energy?
Kinetic energy increases slightly
Kinetic energy doubles
Kinetic energy quadruples
Kinetic energy is always constant
After testing a prototype a student wasn't happy with the results. Based on scientific design, what should you do to improve the results.
Keep testing the prototype without changing until you get better results.
Modify the prototype, making a single change at a time and test it to see how it affects the results.
Make several changes at a time to get quicker results.
Start over again with an entirely new prototype
A couple of friends went snow skiing. John has a mass of 90 kg and Tom has a mass of 70 kg. which one has more gravitational potential energy at the top of the hill?
John
Tom
They have the same amount
Impossible to determine
If John (mass 90 kg) and Tom (mass 70 kg) are skiing at the same speed, which one has more kinetic energy.
John
Tom
They have the same amount of kinetic energy.
Impossible to determine
If two skiers continue to pick up speed going down the hill, where will they have the greatest kinetic energy
At the top of the hill
At the midpoint of the hill
At the bottom of the hill
Impossible to determine
If two skiers are going going down a hill, where would they have the most gravitational potential energy?
At the top of the hill
At the midpoint of the hill
At the bottom of the hill
Impossible to tell
As John continued to pick up speed down the hill, he doubled his speed from the midpoint of the hill to the bottom of the hill. How did his kinetic energy increase from the midpoint to the bottom.
Kinetic energy doubled
Kinetic energy quadrupled
Kinetic energy remained constant.
Impossible to determine
