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Forces, Machines and Work Jeopardy Forces Levers & Pulleys Calculation Mixed Bag 10 20 30 40 50 Final ?? TIE b. ??

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OOPS….go to main board

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Forces for 10 What happens when an unbalanced force is applied to a sitting rock? A

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Answer to Forces for 10 The rock moves in the direction of the force.The rock moves in the direction of the force.

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The force that pulls objects down is called ____. Forces for 20 pts

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Answer to forces for 20 GRAVITY or gravitational force Board

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The effort it takes to pull a sled up an incline or lift a load is called the _______ _______. A A Forces for 30 pts

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Answer to forces 30 Effort Force Board

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Forces 40 Other than gravity, what two forces are acting on a paper airplane floating in the air? Answer

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Answer to forces for 40 Fluid friction Bouyant force D O U B L E J E O P A R D Y 8 0 p t s i f c o r r e c t ; 2 0 p t s i f o n l y o n e c o r r e c t ! ! Board

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What are two non-contact forces ? ? A Forces for 50 C H A L L E N G E C H A L L E N G E C H A L L E N G E

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If you were challenged and were correct, you get 50 pts If you were challenged and was not correct, the team that challenged you gets 100 pts. Gravitational Force Magnetic force (Attractive forces accepted if you do not give either of the two above) Centripetal Answer to forces 50 Board

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OOPS….go to main board

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10 pts: Levers What is this type (class) of lever called? A

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Answer to lever & Pulley 10 pt »First Class Lever » remember the other two classes also! Board

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Lever & pulley 20 What is the name of this type of pulley 1N

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Lever & Pulley answer to 20 pts. If correct, you must switch with another team. Double fixed, single moveable PLUS you earn 40 pts more!! Board

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Levers & pulley for 30 A fixed pivot point of a lever is called the… lever is called the… A

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DOUBLE JEOPARDY!! If Right You Earned 60 pts! Fulcrum board Board

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40 pts. Levers What type of lever is the following? A

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40 pts lever answer Second class lever Board

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Levers for 50 pts Label the 4 parts you see in the following diagram: AAAA

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Answer to 50 pt lever & pulley Fulcrum Load (or Resistance) force Effort force » lever/arm/or rod Board

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OOPS….go to main board

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Calculations for 10 pts: How do I calculate for work? A

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Answer to calculations 10 Work = Force in Newtons x distance in meters Board

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Calculations answer for 20! Free square = free points!! So stand at the right time….. board

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Calculations for 30 pts.: What units are Work measured in? Write it on the board…. A

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Calculations answer for : 30 pts! Work= Nm board

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How would I calculate for work output? From Calculations for 40 pts. Switcheroo !! A

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Work Output = load force divided by effort force If you got this right you may choose any table to switch the current table score with. If you got this wrong you do not switch, but if a reasonable attempt made you may have 20 pts. board Calculations answer for 40 pts.

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50pts: Calculations for 50pts: How would I calculate for Input work? Answer

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If right, you earned not 50 pts., but 100 pts! board DOUBLE JEOPARDY!! Work Input = Effort distance divided by load distance 50 pt. calculations

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OOPS….go to main board

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Mixed bag for 10 What type of lever is the following: A

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Mixed Bag Answer for 10 Third class lever Board

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Mixed bag for 20 pts How do we know the question about a machine is talking about a fake machine? (according to the data…) SURPRISE JEOPARDY!!! Board

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Answer to mixed bag 20 (SURPRISE!!! EARN DOUBLE YOUR SCORE if right!! ~ if you started with 0 and got this right, go to 300) ANSWER -- If we look at the work output and the work input, a real machine would have friction, so work output number is LESS than the work input number.

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OOPS….go to main board

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Mixed bag for 30 What does Inertia mean and which Law is it? A

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Mixed Bag Answer for 30 In Newton’s First Law An object at rest will remain at rest, an object in motion will remain in constant motion, unless acted upon by an unbalanced force. Board

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Mixed bag for 40 Read the following and tell me agent of force (Causing it), receiver of force, what happens and what the force is called: A 10-speed bike brake is pushed and the bike stops.

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Answer to m. bag 40 If correct, switch with another and add 80 pts. Not correct, means no switch and no double jeopardy! –agent of force (Causing it) : brake –receiver of force : tire (or 10-speed) –what happens : bike stops –what the force is called: friction Board

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Mixed bag for 50 Explain the big idea on how all simple machines effect the work that is done on an objectExplain the big idea on how all simple machines effect the work that is done on an object

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Mixed Bag Answer for 50 DOUBLE JEOPARDY!! EARN 100 A simple machine will reduce effort force needed and increase effort distance. (Work done on the object stays pretty much the same.) Board Extra for group: Which simple machine reduces effort the most?(5 pts) And why? (10 pts)

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The following slides are final jeopardy

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CLICK BELOW FINAL JEOPARDY HOW MUCH ARE YOU RISKING?? CLICK BELOWIn order for your chair to hold you up it must __________________. Hint: Newton’s 3 rd Law of motion

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HOW MUCH DID YOU RISK?? Exert on you an equal force upward Board

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TIE BREAKER What is the difference between mass and weight? DECIDE ON HOW MUCH TO WAGER AND WHOM TO ANSWER BY THEMSELVES: (YOUR WAGER ONLY AFFECTS THE TWO TIED) click below when ready -----

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Weight is the effect of gravitational force on an object’s mass while mass is only the matter and the space the object takes up. Board

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THE END

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