Was invented in 1763 this heat engine became the most popular capable of utilizing heat to do work for over 100 years.
What is the Watt Steam engine?
100
Is the fuel source for stars like our sun
What is hydrogen (hydrogen-hydrogen fusion reactions)?
200
Is movement in a straight line where you do not vary your speed of travel
What is uniform motion?
200
Is the name given for a very complex machines arranged to perform tasks in sequence
What is a Rube Goldberg machine?
200
This individual is who the unit for Energy is named after
Who is James Prescott Joule?
200
States that hot objects give heat to cold objects
What is the 2nd law of Thermodynamics?
200
Nuclear and Coal burning stations are also known by this term because of how they work.
What are thermal power stations?
300
Movement in a negative direction decreasing in speed is called this
What is positive acceleration?
300
What are the three things needed to be considered doing work?
1. A force 2. An object moved a Distance 3. The force and Distance moved in the same direction
300
This was the latin term given to energy before we called it energy
What is vis viva or life force?
300
Invented the first battery
Who is Alessandro Volta?
300
These are four indicators that an energy conversion or transfer has taken place
What are motion, change in shape, change in position and temperature?
400
If a car moves 6 m north, 10 m south, 19 m north, 3.5 m north and 14 m south. What is the car's total displacement?
4.5 m north
400
A person lifts a box 3.2 m in the air. The box has a weight of 167 N. The person walks 2.95 m to the nearest shelf. How much work has the person done on the box?
5.3 x 10 2 J
400
Is a nucleotide that releases energy in living cells. Has something in common with the professional men's tennis tour.
What is ATP?
400
A historical measure used to gauge the power of an engine. Equivalent to 746 watts.
What is horsepower?
400
These three elements are what allow the inner layers of a solar cell to convert solar energy into electrical energy.
What is silicon, boron and phosphorous?
500
A bird flies 1.9 km east, then 2.7 km west and then finally 0.8 km east. The entire trip takes the bird 1.53 hours. What is the bird's average velocity over the trip?
0 km/h
500
To compress a large spring a distance of 2.50 cm the amount of work required is 19.3 J. How much force is required to compress that spring?
772 N
500
A 1.50 kg bird flying at a speed of 3.72 m/s at a height of 14.0 m off the ground. What is the mechanical energy of the bird?
216 J
500
If a machines energy input is 2505 J and it's energy output to do work is 973 J. How efficient is the machine?
38.9 %
500
Term used for the energy source that utilizes organic matter like wood or animal wastes