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WorksheetsInv 5 - Chemical Interactions
Total questions: 24
Worksheet time: 2hrs 54mins
A closed container of water is kept at a constant temp ... which statement is true?
average kinetic energy particles stays the same
average kinetic energy particles increases
average kinetic energy particles decreases
particles stop moving
Water at 22 degrees is put in ice at 0 degrees. Which way does energy transfer?
from the ice to the water
from the water to the ice
kinetic energy stays the same
If you put ice at 0 degrees into an -80 degree freezer, which of the following is true?
energy transfers from ice to freezer
ice and freezer are at equilibrium
energy transfers from freezer to ice
particles quit moving
A bottle of warm air is put into ice water. What happens to the temperature of the air?
the air gets warmer
the air gets colder
the air freezes
the air stays the same
a bottle of warm air is put into ice water
kinetic energy flows from the air to the ice
kinetic energy does not change
the bottle is at equilibrium
what happens when cold milk is poured into hot chocolate?
energy flows from the chocolate to the milk
energy flows from the milk to the chocolate
the kinetic energy of the milk increases
the kinetic energy of the chocolate increases
Fast Particle A and Slow Particle B collide - which particle has more kinetic energy before collision?
A
B
they have the same
what is kinetic energy?
Fast Particle A and Slow Particle B collide - what happens to kinetic energy?
energy transfers to A
energy transfers to B
energy transfers to A and B
energy transfer doesn't occur
Fast Particle A and Slow Particle B collide - what happens to the speed of A?
it increases
it decreases
it stays the same
it stops moving
Fast Particle A and Slow Particle B collide - what happens to the speed of B?
it increases
it decreases
it stays the same
it stops moving
A baker has two cakes. One is hot and the other is room temp. What happens when he puts both cakes on cold plates?
neither cake transfers energy to the plate
only the hot cake transfers energy to the plate
both cakes transfer energy to the plate
the plate transfers energy to the room temperature cake
A student heated 50mL of water from 0℃ to 60℃. How much energy did she use? remember: cal = mass (times) △T
50 calories
60 calories
300 calories
3000 calories
A chunk of iron is in a cup of water and the iron and the water are the same temperature.
the iron has more kinetic energy
the water has more kinetic energy
they have the same amount of kinetic energy
it is at absolute zero so there is no kinetic energy
Things heat up and cool down as a result of energy transfer. Energy flows _____.
only until equilibrium is reached
in both directions
from hot materials to cold materials
from cold materials to hot materials
What is the temperature change if we heat a cup of tea to 85 degrees from 25 degrees
+60
-60
0
110
what is the temp of 3 equal volumes of water at the following temperatures 10, 20, 30?
60
20
30
10
What state of matter has the highest amount of kinetic energy?
solid
liquid
gas
coffee
1 gram equals
1 mL
1 mg
1 L
1 calorie
what is the unit heat is measured in
karot
gram
degree
calorie
What is the energy given off by 4 grams of peanuts that are heated from 25 to 50 degrees.
75 calories
50 calories
100 calories
peanut butter
What is energy transfer by collision called?
collision
conduction
calorie
smackdown
Particles quit moving ...
at 0 degrees
when they freeze
absolute zero
when they explode
Energy moves from (two options are correct so make sure you click two answers)
high to low
low to high
cold to hot
hot to cold
energy transfer happens by
boiling
collision
it doesn't transfer
transfer
