Experiment Energy in Food

Experiment Energy in Food

Analysing Energy in food through an experiment

Multiple Choice

What is the AIM of this experiment?

• To measure which amount of food has the most amount of energy

• To measure which food has the most amount of energy

• To measure at what temperature will the water start to boil

• To measure how long will the food burn

Multiple Choice

In the AIM, "To measure which food has the most amount of energy."

What is the independent variable?

• the different kinds of food

• the energy stored in food

• the temperature rise of water

• the mass of food sample

Multiple Choice

In the AIM, "To measure which food has the most amount of energy."

How do the scientists measure the energy in food?

• by measuring the mass of different food

• by measuring the temperature of water before

• by measuring the temperature of water after

• by measuring the temperature rise of water

Multiple Select

In the AIM, "To measure which food has the most amount of energy."

To fairly compare the energy present in different food, What two things should be controlled?

• type of food

• mass of food sample

• amount of water in the boiling tube

• temperature rise

Multiple Choice

Which equipment is used to contain the water being heated

• thermometer

• cork and pin

• boiling tube

Multiple Choice

Which equipment is used to measure temperature of water

• thermometer

• cork and pin

• boiling tube

Multiple Choice

If 4 grams of cheese is burnt and the temperature rise is 16 degree Celsius, what is the temperature rise per gram of cheese?

• 4

• 8

• 2

• 16

Multiple Choice

If 4 gram of cornflakes is burnt and the temperature rise is 14 degree Celsius, what is the temperature rise per gram of cornflakes?

• 7

• 3.5

• 3

• 4

Multiple Choice

If 1 gram of crackers is burnt and the temperature rise is 4.5 degree Celsius, what is the temperature rise per gram of cornflakes?

• 4

• 3.5

• 3

• 4.5

Look at table D

Open Ended

Which has the highest amount of energy? How can you say that from the data?

Open Ended

What makes table D a fair comparison?

Multiple Choice

Do you think all the chemical energy stored in the burnt food is transferred to heat the water?

• No, some is transferred to heat the air around it

• Yes, all the energy transferred from the burnt food to the heated water.

Multiple Choice

MASTERED: To calculate the energy transferred from the food to water, E= (mass of water) (temperature rise/gram of food) (4.2).

What is the energy transferred if 10 grams of water is boiled from 20deg to 25degrees?

• 210 J

• 210 degree Celcius

• 200 gram

• 200 J

Multiple Choice

MASTERED: To calculate the energy transferred from the food to water, E= (mass of water) (temperature rise/gram) (4.2).

What is the energy if 10 grams of water is boiled from 20deg to 22degrees?

• 84 J

• 84 degree Celcius

• 84 gram