Name: Date: Class: 6. Which of these activities would require the least effort?

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1 Fry 1. An inclined plane is an example of : a. A simple machine b. A complex machine c. An effort machine d. A time-saving machine 2. on what amusement6iir ride mighl you inclined plane? a. lnclined Plane Quiz b. see an 6. Which of these activities would require the least effort? a. Walking up a short ramp with a steep incline b. Walking up a long ramp with a steep incline c. Walking up a long ramp with a slight incline d. Bypassing the ramp and jumping directly onto a platform 7. When you carry a heavy box up a ramp, instead of lifting it directly onto a platform: 3. Which of the following is a true statement? a. An inclined plane reduces the amount of work one needs to do b. An inclined plane increases the amount of work one needs to do c. An inclined plane makes work require more effort d. An inclined plane makes work require less effort 4.. n physics, what is work? a. The effort exerted over a certain amount of time b. The force required to make an object accelerate c. The effort exerted over a certain distance d. The force required to make a moving object stop 5. Which Olympic evenl features an inclined plane? a. The 10O-meter dash b. Swimming c. lce skating d. Downhillskiing a. The amount of work you have to do increases slightly b. The amount of work you have to do decreases slightly c. The amount of work you have to do decreases significantly d. The amount of work you have to do stays the same 8. Which of the following devices makes use of an inclined plane? l: a. A can b. A funnel c. A bottle d. A bucket 9. Which of the following is an example ol an inclined plane you might find in your house? a. The doorknob on your bedroom door b. The bed that you sleep in c. The blades of a fan used to coolyour room d. The wheels on your desk chair 10. What is a plane? a. Another word for "ramp" b. Another word for "flat surface" c. Another word for "machine" d. Another word for "gravity"

2 Fry Wheel and Axle Quiz Name. 1. Which of the following is a simple machine? 6. Which of these devices uses a wheel and axle? c1. 2. What is the benefit of a simple machine? a. lt allows us to convert motion into electricity b. lt prevents us from making careless mistakes c. li uses magnets to move objects d. lt allows us to move objects more easily 3. What is an axle? a. The tire ihat fits around a wheel b. The rod around which wheels rotate c. A type of inclined Plane d. The rope that is strung through a pulley 4. What is a fulcrum? a. A metal rod that connects two wheels b. A fixed point around which a wheel and axle rotate c..a very large type of wheel and axle d, A device that combines a wheel and axle with an inclined plane 5. Which of the following statements is true? a. The wheel and axle multiply the force you apply to them b. The wheel and axle lessen the force you apply to them c. The wheel and axle make sure the level of force you apply is consistent d. The wheel and axle require a lremendous amount of force to operate 7. Why don't we iust remove lhe wheel and turn the axle? a. Turning the axle directly requires too much effort b. Without the wheel, the axle is useless c. The wheel balances out the weight of the axle d. An axle cannot turn on its own 8. Which answer correctly describes wheel and axle movement? a. The wheel and axle move the same distance and turn with the same amount of force b. The wheel moves a lesser distance than the axle but turns with greater force c. The wheel moves a greater distance than the axle but turns with less force d. The wheel moves, while the axle stays completely still 9. A wheel and axle is basically iust a rotating version of what? a. A lever b. A pulley c. An inclined plane d. An electromagnet 10. ln a doorknob, what Part functions as the wheel? a. The knob itself b. The n'retal rod in the middle c. The fulcrum d. The keyhole

3 Pulley Quiz 1. Which of the following simple machine? is an example of a 6. What is the force exerted by the load being lifted called? a. The actualforce b. The resistance force c. The effort force d. The strong force 7.ln a single pulley, what is the relationship between the eflort and resistance forces? 2. Where on a bicycle might you lind a pulley? a. The gears b. The handlebars c. The seat d. The tires 3. Let's say you were using a single-pulley system to lift a flag up a flagpole. lf you wanted to raise the flag 10 meters into the air, how far would you have to move the rope? a. 5 meters b. 10 meters c. 20 meters d. 50 meters 4. A pulley contains which other simple machine? a. A screw b. An inclined plane c. A lever d. A wheel and axle 5. What is the effort lorce? a. The force that you apply to a simple machine b. The weight of the load that the simple machine MOVES c. The distance that the simple machine moves th.e load d. The amount of effort it takes to construct a simple machine a. The effort force is smaller than the resistance force b. The effort force is larger than the resistance force c. The effort force outweighs the resistance force d. The effort and resistance forces are equal 8. What objects can't you lilt il you're using a single-pulley system? a. Very large objects b. Oddly-shaped objects c. Very lall objects d. Objects that are heavier than you i; 9. Let's say you had a pulley system with a mechanical advantage of 3. ll you want to lift a boulder 10 meiers off the ground, how lar would you have to pullthe rope? a. 3 meters b. 10 meters c. 30 meters d. 300 meters 10. lt's easierlo lilt heavy objects with a doublepulley syslem because: a. The effort force is twice as large as the resistance force b. The effort force is one-half the resistance force c. The effort force is three times as large as the resistance force d. The resistance and effort forces are equal

4 FflP Levers Quiz,. r,,i-", is a tever? a. Any piece of metalthat bends b. Any bar or a rod that's set up to tilt on a fulcrum c. Any bar that's used lo lift a load d, Any bar that's attached to a pulley j^ r;. 2. Which device uses a lever? a. A seesaw b. A pair of tweezers c, A wheelbarrow d. Allof the above 3. a. The load b. The effort c. The fulcrum d. The lever What is the following point called? 4. What happens if you decrease the distance between the fulcrum and the load? a. You have to use more force to move the load b. You can use less force to move the load c. You have to decrease the length of the lever d. You have to increase the height of the fulcrum 5. What defines a first-class lever? a. The fulcrum is between the effort and the load b, The load is exactly centered between the fulcrum and the lever c. The effort is between the fulcrum and the load d. The effort is between the fulcrum and the lever 6. Which of the following is a second-class lever? &'m t'w 7. Which of the following is a lrue statement? a. lt's easier to lift a heavy weight straight up than it is to slide it up a ramp b. When you use a lot of effort, a load becomes lighter c. When you use a minimum amount of effort, a load becomes heavier d. When you increase the distance over which effort is expended, you don't have to work as hard 8. What defines a third-class lever? a. The fulcrum is between the effort and the load b. The fulcrum is in the exact cenler r: c. The fulcrum and lever are equidistanl from the load d. The fulcrum and effort are at the same end 9. a. A first-class lever b. A second-class lever c. A third-class lever d. A fourth-class lever What kind of lever is your arm? 10. How is a class 3 lever different from class 1 and class 2 levers? a. A class 3 lever makes the job easier, but decreases b. A class 3 lever makes the job easier, but increases the movernent of the load c. A class 3 lever makes lhe job harder, but increases d. A class 3 lever makes the job harder, but decreases

5 -:i]i; FF*j Brain FdP Power Quiz,. nl* do you know when force has been applied to an object? a. lt moves b. lt accelerates c. lt becomes heavier d. lt grows larger "*- 2. Work is being done on which of the lollowing objects? Choose the best answer. b. 6. You do 90 ioules of work in 30 ' How much power have you generated? a. 30 watts b. 3 watts c. 120 watts d. 270 watts 7. You move an 8-newton weight five meters in 4. How much power have you generated? a. 160 watts b. 10 watts c. 6.4 watts d. 17 watts 8. You generate 9 watts ol power by moving a 45- newton box one meter. How long did it take you to move the box? 3. Which of these is a measure of force? a. 100 newtons b. 100 meters per second c. 100 joules d. 100 watis 4. You move a 12-newlon box 6 meters across the fl6or. How much work have you done? a. 1B joules b. 2 joules c. 72 joules d. 6 joules 5. You move a 12-newton box up a 6-meter rampln order to f ind out how much power you created, what would you need to know? a. The mass of the box b. The slope of the ramp c. The direction the box moved d. How long the task took a. 5 b. B c. 10 d Which of the following would produce lhdmost power? a. A mass of 10 kilograms lifted 10 meters in 10 'b. A mass of 10 kilograms lifted 10 meters in 5 c. A mass of 5 kilograms lifted 10 melers in 5 d. A mass of 5 kilograms lifted 5 meters in Which of the following would produce the least power? a. A mass of 10 kilograms lifted '10 meters in 10 b, A mass of 10 kilograms lifted I0 meters in 5 c. A mass of 5 kilograms lifted 10 meters in 5 d. A mass of 5 kilograms lifted 5 meters in 10