1. Forces and Motion

2. Lab 7
Power to do WorkPower to do Work

3. Key ObjectivesKey Objectives
The student will:
– Investigate and understand
work, force, mechanical
advantage, efficiency and
power

4. Key ObjectivesKey Objectives
The student will:
– Recognize that power is the rate
at which work is done

5. Key ObjectivesKey Objectives
The student will:
– Make measurements and calculate
the power of an object using the
formula’
– P = W/t
(Power equals Work divided by time)

6. Key TermsKey Terms
Power
Watt(s)

7. PowerPower
The rate at which work is done

8. Watt(s)Watt(s)
The unit of measurement for
power

9. Lab Time
Carefully read
and complete
each activity
from the lab
guide.
 You have 45 minutes

11. Essential LearningsEssential Learnings
Power is the rate at which work
is done
The formula for calculating
power is :
– Power is work divided by time
– (P =W/t).

12. Essential LearningsEssential Learnings
Power is Measured in Watts

13. Essential Learnings
The End!