Jeopardy Simple Machines Force and Gravity Magnets Multiple Choice THINK $100 $200 $300 $400 $500

ANSWER You would use a ________ to chop firewood

QUESTION You would use a wedge (ax) to chop firewood

ANSWER In order to pull a bucket up into a tree house you could use a ___________ with a rope.

QUESTION You could use a pulley to put the rope around to help reduce the amount of work and make it easier to lift the bucket.

ANSWER A ___________ is used over a fulcrum in order to move heavy objects.

QUESTION A lever is the simple machine that rests on a fulcrum.

ANSWER A wheel chair needs an ____________ __________ to get into some buildings.

QUESTION A wheel chair needs an inclined plane to help get into some buildings. (ramp)

ANSWER In order to get out of a room with the door shut I need to turn the door knob. This simple machine is also known as a _____________ and ________________.

QUESTION What is a wheel and axle?

ANSWER A push or a pull is called a ___________?

QUESTION What is a force?

ANSWER Without gravity everything on Earth would be __________________?

QUESTION What is weightless?

ANSWER Why do apples fall to the ground off of trees?

QUESTION Because of gravity.

ANSWER A force can change the way an object: a. looks b. feels c. moves d. seems

QUESTION Force can change the way objects move. Think of hitting a baseball after it is pitched to the batter.

ANSWER Earth’s gravity pulls objects toward the center of the: a. universe b. solar system c. moon d. earth

QUESTION What is Earth?

ANSWER True or False: The force of magnetism is only a pushing force.

QUESTION False! It is both a pushing and pulling force.

ANSWER Magnets are strongest at their ___________.

QUESTION What are poles?

ANSWER Which object would a magnet be attracted to? a. plastic fork b. nail c. rubber band d. wooden ruler

QUESTION A nail. Magnets are attracted to items that contain iron in them.

ANSWER A magnet will pick up a nail but NOT a penny because a nail contains _________ (think: what kind of metal does it contain)

QUESTION A nail contains IRON where a penny does NOT. Magnets are attracted to items that contain iron.

ANSWER Explain what happens when you put 2 magnets near each other when you face both North ends near each other.

QUESTION The magnets would push apart. In order for 2 magnets to attract you need a south and north pole facing each other. (opposites attract)

ANSWER Miss Zinsmeyer tries to lift a 100 pound weight, but it does NOT move. Mrs. Andrews lifts a 10 pound weight and puts it on the table. Who did more work? a.Neither b.They both did the same amount of work c.Mrs. Andrews d.Miss Zinsmeyer

QUESTION Mrs. Andrews did more work because she actually moved the 10 pound weight.

ANSWER The least amount of energy would be used to rollerblade on what type of path? a.Grass b.Stones c.Rug d.pavement

QUESTION It would be easiest to rollerblade on pavement because there would be the LEAST amount of friction.

ANSWER What type of simple machine is represented by the picture? a. lever b. gear c. screw d. pulley

QUESTION The picture is a screw!!!

ANSWER A ball is pushed down an inclined plane. At the bottom is a plastic cup. Which ball would push the cup the farthest distance? a. A golf ball (4 grams) b. A baseball (7 grams) c. A tennis ball (6 grams) d. A ping pong ball (2 grams)

QUESTION The 7gram baseball would push the cup the furthest because it is the heaviest ball and can do more work.

ANSWER Friction occurs between two objects that: a.Rub together b.Move together c.Roll d.Change direction

QUESTION Friction occurs when 2 objects rub together.

ANSWER Find an example in the classroom of a wheel and axle.

QUESTION You can pick a doorknob, wheels on the TV cart, computer cart, overhead cart etc.

ANSWER Show an example of friction.

QUESTION Rub your hands together, slide on the rug (can’t) etc.

ANSWER Find an example of a screw in your classroom.

QUESTION Teacher’s chair (on the backrest), screws in the chairs/desks etc.

ANSWER Where can I find a pulley on school property?

QUESTION On the flag pole!

ANSWER Show a way to do work.

QUESTION Push a desk, chair or just DO something that shows you are pushing or pulling something and it moves!