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Physical Science Ch 5 Section 1 Guided Reading
1.
What is work?
2.
What are the 2 conditions that must be done to do work?
3.
How are work and energy related?
4.
What is the formula for work? What is the unit?
5.
What does the distance in the work formula mean?
6.
What is power?
7.
What is the formula and unit for power?
8.
What is the formula for power using energy?
9.
Complete # 1 on page 131
10. Complete #3 on page 131
Physical Science Chapter 5 Section 2 Guided Reading
1.
What is a machine? Give 4 examples.
2.
What are 3 ways machines make work easier?
3.
What are the two forces involved when using a machine?
4.
Can a machine change the amount of energy transferred to the machine?
5.
For an ideal machine, what is the relationship of the input work to the output work?
6.
Where is energy lost in a machine and in what form does it come out?
7.
What is mechanical advantage? What does a MA of 1 tell you?
8.
What is efficiency? What is the formula?
9.
Can a machine ever have efficiency greater than 100%?
10. Complete #2 on page 137.
Physical Science Chapter 5 Section 3 Guided Reading
1.
What is a simple machine?
2.
What are the six simple machines?
3.
What are the 3 types of levers? Give an example of each.
4.
WTDB a fixed pulley and a movable pulley?
5.
The wheel and axle is a modified form of what other simple machine?
6.
How does an inclined plane reduce the amount of force required to do work?
7.
What makes up a screw?
8.
How does a wedge increase force to help with work?
9.
What is a compound machine? Give 4 examples.
10. Complete #4 on page 146.