University:
Concordia University Wisconsin
Course:
PHYS 1514 | General Physics I
Academic year:

2023
Views:

273

Pages:

4
Author:

rehinhea0c

Anu Kay Energy Modeling Study Guide Write the key word for each type of energy. This should be how you can know if this type of energy is in a system. (2a) Energy Types What is the key word for this type of energy? How do you know if something has this? Give an example for this type of energy Motion Hay Moring it is hos a relocity morily car Thermal hent store Radiant light flashlight Sound Sound/vibrations music Electrical Electricity Generator, phone Gravitational height it something is above ground level an apple in a tree Elastic Stretch/compress rubber band Chemical fuel/food/ can burn something coal, oil, food, energy people ase Nuclear radiation unclear power plost sun's power source Define the energy transformation for each example AND identify the objects in the system Oil-Burning Lamps Objects in system (2f): il, lamps Chemical energy into Radiant and Thermal (2c) Person's hair moved by the speaker Objects in system (2f): Speaker, hair Sond energy into motion (2b) 1. What is the equation for gravitational energy? (2d) U_{g} = mg 2. g =\ 3. What is the equation for motion energy? (2d) K infty = 1 2 mv^ 2 4. What is the equation for elastic energy? (2d) U_{E} * 1/2 * k * x ^ 2 5. What is the unit used to measure energy? (2c) Jonk (5) 6. A 5 kg weight is lifted 2 m above the ground. (2e) What type of energy does the weight gain? How do you know? Gravitational because it gaiss height Calculate the amount of energy for the weight. Include all units U_{g} = mgh =5kg*9.8*2m^ * [98J] 7. A 1200 kg car drives 30 m/s. What type of energy does the car have? How do you know? Morion chergy because it mores (or has a velanity) Calculate the amount of energy for the car. Include all units (2e) mv²½-12.00.30 0540,000 J 8. A spring with a spring constant of 12 N/m is stretched 2 m. What type of energy does the spring? How do you know? Elastic because it is stretched Calculate the amount of energy for the spring. Include all units (2e) 2 1 Vkx²= ・12N/m2 2 $245 9. How can you find the total amount of energy in a system? add all of the types of energy together 10. What is Conservation of Energy? The total energy of a system won't change (water there it is is a closed rusten)