QUESTION 2 Calculate the number of calories (not nutritional calories) in 65 kj
ID: 1089691 • Letter: Q
Question
QUESTION 2 Calculate the number of calories (not nutritional calories) in 65 kj of energy. (The quiz will not accept units in your answer so please enter the numerical value only) QUESTION 3 Match the term to the most correct example. Some of the examples qualify as more than one term, but pick the best match. There is one example for every term . Kinetic Energy A A ball rolling down a hill hd ob Potential Energy Thermal Energy Chemical Energy A child at the top of the slide before sliding down D. The energy that causes water in a heated kettle to move faster · and eventually boil Click Save and Submit to save and submit. Click Save All Answers to sove all answers Save All Answe filename-1 (1).pofExplanation / Answer
Answer for question no.2)>>
1 kJ =1000 J
Here ,65 KJ is given,that is 65KJ=65*1000 J=65000 J
Again,1 cal=4.184 J
Therefore ,65000J=65000 J*(1 Cal/4.184J)
=15535.373 Cal
Answer for question no. 3)>>
Kinetic energy ---------->A) A ball rolling down a hill.Because as the ball rolling down from the hill then potential energy converts to kinetic energy.
Potential energy-------->C)A child at the top of the slide before sliding down.Because potential energy of a subject due to its position relative to other subject and can be converted into other types of energy like kinetic,heat energy etc.He moves from the center of the earth when top of the slide.
Thermal energy--------->D) The energy that causes water in a heated kettle tomovre faster and eventually boil.Thermal energy i.e.,heat energy increases the motion of the water molecules.
Chemical energy---------->B) Energy stored in the eggs I had for breakfast.When we eat egg then stored energy converts to chemical energy by our body(digestion).