Wednesday, 25th January, 2012.
PHYSICS TEST
This is the link to the test. A new page will open as you click on it. Remember to click the submit button down the NEW page when you finish.
Good luck!
Deadline: Monday, 30th January, 2012
https://docs.google.com/spreadsheet/viewform?formkey=dHdNWnZadXc3bHBMR1pyeWxpdVZ5RkE6MA
Simple and Compound Machines
The sites below provide very useful information. You are encouraged to visit them after reading pages 92-101 from the textbook.
Click on the 'post a comment' tab below to answer the questions.
Deadline:12pm, Monday 23rd of January
Make sure you write your name.
http://www.fi.edu/pieces/knox/automaton/lever.htm
http://www.enchantedlearning.com/physics/machines/Levers.shtml
http://www.the-office.com/summerlift/pulleybasics.htm
1. Why do we use machines?
2. What are the six simple machines?
3. What simple machines belong to the inclined plane family?
4. What is a lever?
5. What simple machines belong to the lever family?
6. Where is the fulcrum located in a class one lever?
7. List some examples of a class one lever.
8. Where is the load located in a class two lever?
9. List some examples of a class two lever.
10. Where is the effort located in a class three lever?
11. List some examples of a class three lever.
12. What is a pulley?
13. Describe a compound machine
14. Give some examples of a compound machine.
8 comments:
when is it due
teen
Submit by 12pm on Monday 23rd of January, 2012. Enjoy your weekend!
1.we use machines to help make our work easier and more enjoyable. 2. They are inclined planes,wedges,screws,levers,pulleys,and wheels and axles. 3. The wedge and the screw . 4. A lever is a rigid bar that is free to pivot around a fixed point. 5. Classes 1,2,and3 levers. 6. In the center between the effort force and the resistance force. 7. Crowbar,seesaw , pliers. 8. In the center between the fulcrum and effort force. 9. Wheelbarrows , doors, nutcrackers, and bottle openers. 10. In the center between the resistance force and the fulcrum. 11. Fishing poles, shovels, hoes ,hammers,baseball bats,etc. 12. A pulley is a rope, chain, or belt wrapped around a grooved wheel. 13. A compound machine is a combination of 2or more simple machines. 14. A car,washing machine, bike, blenders,etc.
Destiny Emmanuel
1:We use machines to make work easier
2: The 6 simple machines are the inclined plane, the wedge, the screw, the lever, the pulley, and the wheel and axle.
3: The wedge and the screw
4:A lever is a simple machine that can be part of more complex machines
5: A fulcrum
6:In the middle, between the resistance and effort force
7: See-saws,crowbars
8:Between the fulcrum and effort force.
9:Bottle openers,Doors and wheelbarrows
10:In the middle
11: A fishing pole, Shovels, tweezers and baseball bats
12:A pulley is a rope, belt or chain.
13:A compound machine is when 2 or more simple machines are combined
14: A car, a washing machine bike, e.t.c.
Mr yinka sorry if its late my internet wasnt working just got it done now Please pardon me
1:we use machines to make our work easier
2:Inclined planes,wedges,screwes,levers,pulleys,and wheels and axles.
3:Wedges and Screwes
4:A rigid bare free to move about a single point
5:Pulley, Wheel and axle, Lever
6:Between the effort and the load
7: Pliers, Seesaw
8:Between the fulcrum and effort force
9:Bottle openers,Wheelbarrow
10:between the resistance force and the fulcrum
11:Baseball bats,hammers,hoes,shovels
12:rope, chain, or belt wrapped around a grooved wheel.
13:a combination of two or more simple machines
14:Watches,Typewriters,Bycicle,Cars
Toni Yaz Salami
Please whats your email
Physics Homework- State the differences between Solar eclipses and Lunar eclipses.
Solar eclipses can only occur at a new moon and lunar can only happen at full moon.Solar Eclipses don't last as long as lunar eclipses. The maximum time for a solar eclipse to take place is 7minutes and 40seconds whereas, a lunar eclipse lasts for about 2hours. A solar eclipse takes place when the moon passes between the Earth and Sun. A Lunar eclipse takes place when the earth moves between the sun and moon. When a solar eclipse has taken place the shadow of the moon is cast on the earth but the shadow of the earth is cast on the moon in a lunar eclipse.
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