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WorksheetsInvestigating Heat 5th
Total questions: 19
Worksheet time: 10mins
Makiah puts red dye in a beaker filled with water. The red dye will spread most quickly in
hot water
warm water
cold water
Two substances are combined. Substance A has a temperature of 20 degrees. Substance B is combined with Substance A and the temperature rises to 40 degrees. Which reaction took place?
Exothermic reaction because it released heat
Endothermic reaction beccause it absorbed heat
Which temperature has the lowest kinetic energy?
50 degrees Celcius
80 degrees Celcius
60 degrees Celcius
95 degrees Celcius
Which temperature has the highest kinetic energy?
50 degrees Celcius
70 degrees Celcius
80 degrees Celcius
95 degrees Celcius
Which is the best explanation for why the body perspires (sweats)?
As perspiration evaporates, it cools the body
Perspiration drains the body of its cool liquids
As perspiration is produced, the warmth of the body is pushed inside the body
Which would be the best conductor?
Object A had a temperature change from 22 degrees Celcius to 40 degrees Celcuis
Object B had a temperature change from 22 degrees Celcius to 23 degrees Celcuis
Object C had a temperature change from 22 degrees Celcius to 50 degrees Celcuis
Which would be the best insulator?
Object A had a temperature change from 22 degrees Celcius to 39 degrees Celcuis
Object B had a temperature change from 22 degrees Celcius to 23 degrees Celcuis
Object C had a temperature change from 22 degrees Celcius to 40 degrees Celcuis
What is the correct rate of heat transfer for a high temperature of 40 and a low temperature of 20 in 10 minutes?
2
4
8
20
What is the correct way to calculate rate of heat tranfer?
High temperature - low temperature
(high temperature - low temperature) / time
(High temperature x low temperature) / time
High temperture / time
What happens when you place an alcohol thermometer in a beaker of hot water?
the level of the alcohol rises
the level of the alcohol falls
the level of the alcohol stays the same
What happens when you place an alcohol thermometer in a beaker of cold water?
the level of the alcohol rises
the level of the alcohol falls
the level of the alcohol rises and then falls
What happens when you put an alcohol thermometer in cold water?
kinetic energy of the alcohol increases
kinetic energy of the alcohol decreases
kinetic energy of the alcohol stays the same
What happens when you put an alcohol thermometer in hot water?
kinetic energy of the alcohol increases
kinetic energy of the alcohol decreases
kinetic energy of the alcohol stays the same
Which describes the Joule-Thompson effect?
air feels warm because it compresses and cold when it expands
air feels cold because it compresses and warm when it expands
What happens to temperature during an endothermic reaction?
It increases
It decreases
What happens to the temperature during an exothermic reaction?
It decreases
It increases
Which beaker will transfer heat the quickest?
50 mL of water
100 mL of water
20 mL of water
Which direction does heat move?
Hot to cold
Cold to Hot
Both move towards each other
Which is the best reason that hot moves to cold?
higher kinetic energy moves to lower kinetic energy
lower kinetic energy moves to higher kinetic energy
heat does not more from hot to cold
