Concordia University

PHYS 273

LESSON 1

1)The energy due to motion of atoms in a material is

1. 1. chemical
   2. thermal
   3. nuclear
   4. electrical
   5. electromagnetic
2. The energy stored in coal is an example of
   1. chemical
   2. thermal
   3. nuclear
   4. electrical
   5. electromagnetic
3. If the temperature of object increases, thermal energy
   1. always increase
   2. might increase
   3. remains constant if nothing changes about object
   4. might decrease
4. You pick an apple up off the ground and lift it up one metre to the top of the table. Which is true?

4. 1. you have increased apple’s gravitational potential energy
   2. Decrease apple’s gravitational potential energy
   3. apple’s gravitational potential energy not changed
   4. not enough info to make statement about change in apple’s gravitational potential energy
5. The energy due to an object’s motion is called
   1. chemical
   2. nuclear
   3. kinetic
   4. electrical
   5. electromagnetic

6. You try to pick up your mom’s car but it is too heavy and it doesn’t move. After you are very tired. Which is true?

1. 1. You did no work on the car because you didn’t a apply a force.

B. You did no work on the car because it did not move.

c. You did work on the car, that is why you are tired.

d. You did work on the car but the work is now gone because you have stopped.

7. Dino and Jake are out for a walk together pushing their strollers. They each exert the same force on their strollers. Dino walks twice as far as Jake.

1. 1. Dino does twice as much work as Jake.
   2. They do the same amount of work
   3. Jake does twice as much work as Dino
   4. Neither of them do any work.

8. Saying “the electromagnetic spectrum” is the same as saying “visible light”. T OR F

9. The C in E= Mc2 refers to
   1. electric charge
   2. mass of light
   3. photons
   4. speed of light

10. Work is
    1. transfer of energy
    2. force
    3. momentum
    4. beyonce song