6 8 5 Energy Breakout Solutions 750 J 1500 W 225 N 2700 J

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Presentation transcript:

6 8 5 Energy Breakout Solutions 750 J 1500 W 225 N 2700 J 6 3 5 4 P U S H 6 8 5 8 6 3 5 4 4 2 5 5 750 J Level 1 Level 2 1 3.4 J 22.80 m/s 2 4.5 J 18.44 m/s 3 6.1 J 21.45 m/s 4 2.3 J 16.45 m/s 5 1.7 J 17.32 m/s 6 8.8 J 14.83 m/s 7 5.3 J 24.08 m/s 8 7.2 J 13.42 m/s 1500 W 225 N 2700 J 6 3 5 4

5 A hamster can do 50 Joules of work in 5 seconds. How many hamsters would be needed to power a 60 W light bulb? C A Roughly how fast is a 0.2 kg banana moving when it hits the ground if it’s dropped from 1.25 m? B 6 Calculate the kinetic energy of a 62.5 g golf ball flying through the air at 16 m/s 8

6 3 5 4 KE = 6,880 J KE = 1,720 J PE = 875 J PE = 1,750 J KE = 3,700 J 8 m/s 4 m/s PE = 875 J PE = 1,750 J 5 kg 10 kg KE = 3,700 J KE = 1,850 J 296 kg 148 kg PE = 6,000 J PE = 2,000 J 12 m 4 m

m = 80 kg PE = 215 J KE = 425 J v = 4 m/s

22.80 m/s 18.44 m/s 21.45 m/s 16.73 m/s Group 1 Group 2 Group 3 300 kg What is the speed of the roller coaster car as it rolls over the second hill if it starts as shown with a velocity of 0 m/s? 61 m 22.80 m/s 35 m What is the speed of the roller coaster car as it rolls over the second hill if it starts as shown with a velocity of 0 m/s? 300 kg 52 m 18.44 m/s 35 m What is the speed of the roller coaster car as it rolls over the second hill if it starts as shown with a velocity of 0 m/s? 300 kg 63 m 21.45 m/s 40 m What is the speed of the roller coaster car as it rolls over the second hill if it starts as shown with a velocity of 0 m/s? 300 kg 54 m 16.73 m/s 40 m

17.32 m/s 14.83 m/s 24.08 m/s 13.42 m/s Group 5 Group 6 Group 7 300 kg What is the speed of the roller coaster car as it rolls over the second hill if it starts as shown with a velocity of 0 m/s? 45 m 17.32 m/s 30 m What is the speed of the roller coaster car as it rolls over the second hill if it starts as shown with a velocity of 0 m/s? 300 kg 36 m 14.83 m/s 25 m What is the speed of the roller coaster car as it rolls over the second hill if it starts as shown with a velocity of 0 m/s? 300 kg 47 m 24.08 m/s 18 m What is the speed of the roller coaster car as it rolls over the second hill if it starts as shown with a velocity of 0 m/s? 300 kg 38 m 13.42 m/s 29 m

3.4 J 4.5 J 6.1 J 2.3 J Group 1 Group 2 Group 3 Group 4 PE = 8.4 J KE = 1 J PE = ? KE = 6 J 4.5 J PE = 8.5 J KE = 2 J PE = ? KE = 6 J 6.1 J PE = 8.1 J KE = 3 J PE = ? KE = 5 J 2.3 J PE = 8.3 J KE = 4 J PE = ? KE = 10 J

1.7 J 8.8 J 5.3 J 7.2 J Group 5 Group 6 Group 7 Group 8 PE = 8.7 J KE = 5 J PE = ? KE = 12 J 8.8 J PE = 10.8 J KE = 6 J PE = ? KE = 8 J 5.3 J PE = 8.3 J KE = 7 J PE = ? KE = 10 J 7.2 J PE = 8.2 J KE = 8 J PE = ? KE = 9 J