WorksheetsInvestigation 5: Energy Transfer
Total questions: 21
Worksheet time: 11mins
Name
Class
Date
1.
A plastic bottle filled with warm air is placed into cold water. The temperature of the air ________.
a)
doesn't change
b)
gets colder
c)
gets warmer
2.
A plastic bottle filled with warm air is placed into cold water. The temperature of the water ____________.
a)
doesn't change
b)
gets colder
c)
gets warmer
3.
A plastic bottle filled with warm air is placed into cold water. How does energy transfer between air particles and water particles?
a)
no energy transfer
b)
warm air to cold water through the plastic
c)
cold water to warm air through the plastic
4.
True or False: Energy flows from cold milk when it is poured into hot chocolate
a)
True
b)
False
5.
True or False: Energy flows from hot chocolate when cold milk is poured into it.
a)
True
b)
False
6.
True or False: The kinetic energy of cold milk increases when it is poured into hot chocolate.
a)
True
b)
Fasle
7.
True or False: The kinetic energy of hot chocolate increases when cold milk is poured into it.
a)
True
b)
False
8.
A fast moving particle (A)and a slow moving particle (B) collide. Which particle has more kinetic energy before the collision?
a)
Particle A
b)
Particle B
c)
A and B have the same kinetic energy
9.
A fast moving particle (A) and a slow moving particle (B) collide. What happens to the kinetic energy when the particles collide?
a)
Energy tranfers to particle A
b)
Energy transfers to particle B
c)
Energy transfers to both particles
10.
A fast moving particle (A) and a slow moving particle (B) collide. What happens to the speed of each particle after collison?
a)
they both speed up
b)
they both slow down
c)
they move at the same speed
11.
If you have a cup of hot water and a cup of room temperature water and you put them in the refrigerator, what happens?
a)
only the hot water transfers energy to the refrigerator
b)
the refrigerator transfers energy to the room temperature water
c)
both cups of water transfer energy to the refrigerator
d)
neither cup transfers energy to the refrigerator
12.
A student heated 30 mL of water from 10o to 50o. What is the change in temperature of the water?
ΔT=Tf - Ti
ΔT=Tf - Ti
a)
40⁰
b)
30⁰
c)
50⁰
d)
10⁰
13.
A student heated 30 mL of water from 10o to 50o. How much energy did she use to heat the water?
cal = m x ΔT
cal = m x ΔT
a)
20 cal
b)
100 cal
c)
1200 cal
d)
2000 cal
14.
Things heat up and cool down as a result of energy transfer. Energy flows _______.
a)
from hot materials to cold materials
b)
from cold materials to hot materials
c)
in both directions
d)
only until equilibrium is reached
15.
The water and fruit in this picture are at the same temperature. Which particles have more kinetic energy?
a)
the water particles
b)
the fruit particles
c)
they both have the same
16.
What is equilibrium?
a)
when solids have more kinetic energy
b)
when there is no net energy transfer
c)
when liquids have more kinetic energy
17.
The fruit and the water are the same temperature. How does energy transfer?
a)
from the fruit to the water
b)
from the water to the fruit
c)
back and forth
d)
it doesn't transfer
18.
A student put a vial of plain water into a container of ice. She put the container into a freezer. The water in the vial is 22⁰C. The freezer environment (air temperature) is -17⁰C. What direction does energy transfer?
a)
from the freezer to the vial
b)
from the vial to the freezer
c)
back and forth (↔)
d)
it doesn't transfer
19.
A student put a vial of plain water into a container of ice. She put the container into a freezer. The freezer environment is -17⁰C. The ice is 0⁰C. Which direction does energy transfer?
a)
the freezer to the ice
b)
the ice to the freezer
c)
back and forth (↔)
d)
it doesn´t transfer
20.
A student put a vial of plain water into a container of ice. She put the container into a freezer.The ice is 0⁰C. The water in the vial is 22⁰C. What direction does energy transfer?
a)
the ice to the water in the vial
b)
the water in the vial to the ice
c)
back and forth (↔)
d)
it doesn´t transfer
21.
A closed container of water is kept at a constant temperature. Which of the following statements about the water particles is true?
a)
the average KE of the water particles stays the same
b)
the average KE of the water particles increases a little bit
c)
the average KE of the water particles dereases a little bit
d)
the water particles stop moving
100 %
