[17/2] NSB Homework & Some Misconceptions

Energy Activity 2 Experiment - Learning Points

• As the height of the ramp increases, the distance traveled by the car increases.
• As the height of the ramp increases, the amount of gravitational potential energy increases.
• As the toy car moves down the ramp, gravitational potential energy is converted to kinetic energy.
• The greater the amount of gravitational potential energy of the toy car at the top of the ramp, the greater the amount of kinetic energy that is converted into, causing the toy car to move down the ramp faster.

NSB - Difference between Photosynthesis & Respiration

Misconception 1: We use our nose for respiration while plants use their stomata

• Respiration for both plants and animals takes place in all cells.

Misconception 2: Respiration only takes place at night.

• Respiration takes place all the time, throughout the day and night.

Misconception 3: Photosynthesis only takes place in the day.

• Photosynthesis only takes place in the presence of light. If there is no sunlight in the day, photosynthesis will not take place.

Summary table of difference

Homework: NSB - Conversion of Energy from one form to another

We have discussed the following examples on how energy is converted from one form to another.

• During photosynthesis
• During respiration
• When a ball falls from a height

Your task is to read up and write down as many examples on how energy is converted from one form to another. 

- you may use the various types of power stations (application of energy conversion) we have discussed so far.

This task is due Friday, 19 Feb.


Reminder - Things to bring tomorrow.

• Bring along your 2015 Practice Paper (MCQ). We will continue to go through the answers tomorrow.
• [Only for pupils who have not handed in] Bring 2015 Practice Paper (Section B) tomorrow.