Energy Concepts
Energy Calculations
Simple Harmonic Motion
Waves
Final Jeopardy
100
What type of energy is stored energy?
Potential energy
100
A 250 kg bear climbs 6 meters up a tree. What is the bear's potential energy?
15,000 J
100
What is simple harmonic motion, and what causes simple harmonic motion?
Repetitive motion caused by a restoring force
100
What determines how loud or soft a sound is?
Amplitude
100
What is the HEIGHT of the object at point (4)?
2.75 meters
200
What two things affect kinetic energy?
Mass and speed
200
What is the kinetic energy of a 2 kg block moving at a speed of 1 m/s?
1 Joule
200
A butterfly is flapping its wings to fly from one flower to another. Is this an example of simple harmonic motion or linear motion? WHY?
Linear motion
Two different forces that bring the wings up and down
200
What is the frequency of the spring represented in this graph?
2 Hz
300
What two things affect gravitational potential energy?
Height and weight
300
Mr. Mandel's coffee cup on his desk is 1.2 meters off of the ground and has a potential energy of 18 J. What is the mass of his coffee cup?
1.5 kg
300
Find the length of a pendulum on Earth that has a frequency of 0.80Hz. Remember Units!
0.4 meters
300
Calculate the velocity of a wave with a wavelength of 1 m and a period of 2 s.
0.5 m/s
400
When pulling back a rubber band, _______ energy transfers to _________ energy.
Kinetic; Potential
400
A large rock is at the top a hill and weighs 1500 kg. If the Potential Energy of the rock is 20,000 J, what is the height of the hill?
1.33 m
400
On a mystery planet, a pendulum has a period of 3 seconds. If the length of the pendulum is 1.3 m, what is the acceleration due to gravity on the planet? Remember Units!
5.7 m/s2
400
What is the frequency of a wave traveling 300,000,000 m/s with a wavelength of 80 meters? You must use SCIENTIFIC NOTATION to get the points!!
3.75 x 106 Hz
500
What are three forms of energy that are present in an electrical circuit with one light bulb.
Chemical, Electrical, & Thermal
500
What is the velocity of a paper airplane flying with a mass of 0.20 kg and a kinetic energy of 40 J?
20 m/s
500
A spring has a constant of 900 N/m. What hanging mass will cause the spring to stretch 5 meters? Remember Units!
450 kg
500
A train blows its whistle that has a frequency of 575 Hz.
How long would it take for this wave to travel 1 mile (1600 m)?
4.57 s