What is absolute zero?
What is kinetic energy and potential energy? Give examples.
You have a ball in your hand above the ground at rest which you then drop. What energy is involved in each part of this situation and how do we know that total mechanical energy has been conserved? Explain with and without air resistance present.
A boulder and a pebble are sitting on a cliff, which has greater gravitational potential energy and why? A cheetah and a person are racing, both has the same mass, which has a greater kinetic energy and why?
What is temperature? How does an objects temperature relate to motion of the molecules?
What is heat?
Describe thermal expansion/contraction. When temperature rises, which one occurs?
I have a 2kg ball on a cliff 10m high. If the gravitational acceleration on this planet is 4m/s2, what is the GPE of the ball?
A 2kg ball is rolled at 3m/s. What is the KE of the ball?
What is work? And what are the units for work? How does this relate to power?
You need to move your 2 kg physics book from the dinner table. You lift it to the shelf that is 3 m above the table. How much work was done?
Explain how work and power are different. Give examples of how you can do the same work but produce different amounts of power.
Posted Thu Jan 5, 2023 at 10:30 am
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