Concepts and Forms of Energy

Question 1

What are the 5 different FORMS of ENERGY?

Answer 1

• Electrical
• Mechanical
• Potential
• Chemical
• Kinetic

Question 2

Describe ELECTRICAL ENERGY with an EXAMPLE

Answer 2

• Movement of charged particles
• e.g nerve impulses

Question 3

Describe MECHANICAL ENERGY with an EXAMPLE

Answer 3

• Energy of an object due to its motion or position
• It is the sum of Potential and Kinetic
• Using force on pedals of a bike to move

Question 4

Describe POTENTIAL ENERGY with an EXAMPLE

Answer 4

• Stored energy that is released and converted into Kinetic
• Potential stored in ATP

Question 5

Describe CHEMICAL ENERGY with an EXAMPLE

Answer 5

• Energy from chemical reactions
• Hydrolysis of ATP

Question 6

Describe KINETIC ENERGY with an EXAMPLE

Answer 6

• Energy that an object has due to its motion and depends and MV
• KE is released from the PE of a tennis racquet to hit a ball

Question 7

What are the 4 SOURCES of ENERGY?

Answer 7

• ATP/PC
• Glycogen
• Fat
• Prootein

Question 8

Describe Phosphocreatine and its USE during activity with an EXAMPLE

Answer 8

• Essential for ATP replenishment
• Used in PC energy system for short intense activity
• 7-10 seconds of a 100m sprint

Question 9

Describe GLYCOGEN and its USE during activity

Answer 9

• Stored CHO’s that convert into glucose to be used for aerobic/anaerobic pathways
• Efficient source as less O2 required to use chemical energy

Question 10

Describe PROTEIN and its USE during activity with an EXAMPLE

Answer 10

• Last resort for aerobic system
• Broken down into AA’s to provide energy in later stages of long activities
• Like marathons

Question 11

How is ATP REPLENISHED?

Answer 11

• Phosphocreatine breaks down into Creatine+ Pi
• This Pi is given to ADP to reform ATP
• This must occur constantly as ATP stores only last 2-3 seconds without PC