1. heat transfers from an object of _____ temperature to an object of _____ temperature.
a. higher, lower
b. lower, higher
c. higher, greater
d. lower, greater
2. which of the following situations show work is being done?
a. pulling a cart.
b. pushing a wall.
c. carrying a baby.
d. carrying a tray.
3. the higher the object, the higher potential energy (PE) it possess. what happens to the (PE) of a car going downhill?
a. it decreases
b. it increase
c. it stays the same
d. it is unchanged
4. which of the factors affect amount of kinetic energy possessed by an object
a. mass and velocity
b. mass and acceleration
c. mass and height
d. mass and force
5. how are the colors of light arranged?based on its___
a. consistency
b. attractiveness
c. frequency and energy
d. heat and temperature
6. what happens to the temperature of water when an ice cube is added into it?
a. it increases
b. it decreases
c. it becomes warmer
d. it remains the same
7. heat transfers from an object of ____ temperature to an object of ____ temperature.
a. higher, lower
b. lower, higher
c. higher, greater
d. lower, greater
8. "when work is done by an object it loses energy and when work is done on an object it gains energy." a man pushes a table. using the formal statement, who/which gains energy? lose energy?
a. table, man
b. man, table
c. hand, man
d. hand, table​