11stst 6 Weeks 6 Weeks ReviewReview

By: Katherine PeaseBy: Katherine PeaseQuestions by: Rebecca NeillQuestions by: Rebecca Neill

1. What is the sequence of 1. What is the sequence of energy transformations energy transformations when heating up an oven?when heating up an oven?

M: Mechanical energy turns oven M: Mechanical energy turns oven knobknob

N: Chemical Energy moves handN: Chemical Energy moves hand O: Electrical Energy enters the O: Electrical Energy enters the

ovenoven P: the oven heats upP: the oven heats up

1. Answer1. Answer

N-M-O-PN-M-O-P

2. The burning of 2. The burning of gasoline in the cylinder of gasoline in the cylinder of an automobile engine an automobile engine pushes the pistons. What pushes the pistons. What will this chemical energy will this chemical energy be transformed to?be transformed to?

2. Answer2. Answer

Mechanical energyMechanical energy

3. Answer3. Answer

The law of the The law of the conservation of energyconservation of energyEnergy can never be Energy can never be created or destroyed, it created or destroyed, it can only change from can only change from one form to another.one form to another.

4. According to the diagram, 4. According to the diagram, which energy transformation which energy transformation does the turbine fan cause the does the turbine fan cause the water to make electricity?water to make electricity?

See Handout

for diagram

http://www.eia.doe.gov/kids/energyfacts/sources/renewable/water.html

4. Answer4. Answer

Mechanical to ElectricalMechanical to Electrical

5. Water flowing through pipes 5. Water flowing through pipes is an example of which type of is an example of which type of energy?energy?

5. Answer5. Answer

Kinetic energyKinetic energyEnergy in motionEnergy in motion

6. According to the diagram, 6. According to the diagram, describe the two kinds of describe the two kinds of energy involved in the energy energy involved in the energy transformations of wind transformations of wind energy to electricity.energy to electricity.

6. Answer6. Answer

7. Which of the tool is most 7. Which of the tool is most useful when measuring useful when measuring force?force?

http://www.arborsci.com/Products_Pages/Measurement/SpringScales.aspx

7. Answer7. Answer

Spring ScaleSpring Scale

http://www.physlink.com/estore/cart/100gSpringScale.cfm

8. Which Newton’s Laws 8. Which Newton’s Laws supports the movement of supports the movement of how the water sprinkler how the water sprinkler turns?turns?

http://www.nextag.com/water-sprinkler/search-html

8. Answer8. Answer

Newton’s 3Newton’s 3rdrd Law of Law of MotionMotionFor every action there is For every action there is an opposite and equal an opposite and equal reactionreaction

9. Which of the following 9. Which of the following pictures explains that radiant pictures explains that radiant energy from the sun is energy from the sun is transformed into chemical transformed into chemical energy through the process of energy through the process of photosynthesis?photosynthesis?

9. Answer9. Answer

D is the correct D is the correct answeranswer

10. Using the diagram, what 10. Using the diagram, what prediction can be made about prediction can be made about the movement of object X?the movement of object X?

Object X30 N 20 N

10. Answer10. Answer

Will move to the rightWill move to the right30N – 20N = Net force of 30N – 20N = Net force of 10N10N

11. Which lever would 11. Which lever would need the least amount need the least amount of effort to move the of effort to move the load of the log?load of the log?

See Handout for diagram

11. Answer11. Answer

GG

12. According to the 12. According to the diagram, at which point is diagram, at which point is the kinetic energy of the the kinetic energy of the car the greatest?car the greatest?

12. Answer12. Answer

B is the correct B is the correct choicechoice

13. What conclusion 13. What conclusion can be made from can be made from the data graphed?the data graphed?

See handout for informationSee handout for information

13. Answer13. Answer

Manipulated Variable is Manipulated Variable is the distance from the the distance from the light.light.

Graph shows that the Graph shows that the closer to the light, the closer to the light, the more oxygen is producedmore oxygen is produced

14. Place an “E” in the 14. Place an “E” in the diagram above to show the diagram above to show the effort force be applied to move effort force be applied to move the wheelbarrow full of dirt.the wheelbarrow full of dirt.

See outline forSee outline for

diagramdiagram

http://en.wikipedia.org/wiki/Wheelbarrow

14. Answer14. Answer

E

15. Place an “R” in the 15. Place an “R” in the diagram above to show diagram above to show where the resistance where the resistance located when the located when the wheelbarrow moves dirt?wheelbarrow moves dirt?

15. Answer15. Answer

R

16. The root tip is able to 16. The root tip is able to force its way by acting force its way by acting like which simple like which simple machine?machine?

http://school.discoveryeducation.com/clipart/clip/ani-grow.html

16. Answer16. Answer

WedgeWedgeA wedge is two A wedge is two inclined planes inclined planes connected at a point to connected at a point to form an object that can form an object that can cut / split things apartcut / split things apart

17. What variable 17. What variable would most affect would most affect how far the balloon how far the balloon travels?travels?

17. Answer17. Answer

Air ResistanceAir Resistance

18. Which variable would be 18. Which variable would be supported by Newton’s supported by Newton’s Second Law to increase the Second Law to increase the acceleration of the box?acceleration of the box?

See Handout for Diagram

12 kgForce 80N

18. Answer18. Answer

Increase the amount of Increase the amount of Force Force being appliedbeing applied

Force=mass x Force=mass x accelerationacceleration

19. Which letter identifies 19. Which letter identifies the resistance in this the resistance in this pulley system?pulley system?

See Handout for diagramSee Handout for diagram

http://www.the-office.com/summerlift/pulleybasics.htm

19. Answer19. Answer

BB

20. Which of Newton’s 20. Which of Newton’s Laws is supported by the Laws is supported by the Texas Seatbelt Law for Texas Seatbelt Law for Minors?Minors? http://teachertech.rice.edu/Participants/louviere/Newton/law1.htmlhttp://teachertech.rice.edu/Participants/louviere/Newton/law1.html

20. Answer20. Answer

Newton’s First Law of MotionNewton’s First Law of Motion

An object in motion will stay in An object in motion will stay in motion, an object at rest will motion, an object at rest will stay at rest until an unbalanced stay at rest until an unbalanced force acts upon it.force acts upon it.

If these boys are applying a If these boys are applying a balanced amount of force, balanced amount of force,

who will win?who will win?

21. answer21. answer

Neither, they are Not Neither, they are Not MovingMoving

Both sides are applying Both sides are applying an equal amount of an equal amount of forceforce

Which of Newton’s laws Which of Newton’s laws explain how a rocket takes off?explain how a rocket takes off?

22. answer22. answer

Newton’s 3Newton’s 3rdrd Law, Law,

action = opposite reactionaction = opposite reaction

For every action there is an For every action there is an equal and opposite reactionequal and opposite reaction