Bell Ringer Write down this question on your paper and answer Hitting a ball with a tennis racket is work because ____________.

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Presentation transcript:

Bell Ringer Write down this question on your paper and answer Hitting a ball with a tennis racket is work because ____________.

Work examples What is Work? O List 3 examples where work is being done O Write and draw pictures O Draw 2 arrows for force and direction What is not… O List 3 examples where work is not being done O Write and draw pictures O Draw 2 arrows for force and direction

Problem #1 O Amy uses 20N of force to push a lawn mower 10 meters. How much work does she do?

Problem #2 O How much work does an elephant do while moving a circus wagon 20 meters with a pulling force of 200N?

Problem #3 O A 900N mountain climber scales a 100m cliff. How much work is done by the mountain climber? O

Problem #4 O Shawn uses 45N of force to stop the cart 1 meter from running his foot over. How much work does he do?

Problem #5 O How much work is done when a force of 33N pulls a wagon 13 meters?

Problem #6 O How much work is required to pull a sled 5 meters if you use 60N of force?

Problem #8 O Angela uses a force of 25 Newtons to lift her grocery bag while doing 50 Joules of work. How far did she lift the grocery bags?

Problem #7 O Tommy does 15 Joules of work to push the pencil over 1 meter. How much force did he use?

Problem #9 O The baseball player does 1234 Joules of work when hitting a baseball into left field. Assuming the baseball landed 100 meters away from home plate, how much force did the player use to hit the ball?