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Effort Force vs. Acceleration Lab Discussion

Effort Force vs. Acceleration Lab Discussion. Ungraded. Click on #1. Enter answer text. 0. Non-Response Grid. PS1B: Types of Forces. I can: Describe what causes and affects friction Describe the forces acting on an object: normal force frictional forces Weight (mg) Gravity

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Effort Force vs. Acceleration Lab Discussion

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  1. Effort Force vs. Acceleration Lab Discussion Ungraded

  2. Click on #1 • Enter answer text... 0 Non-Response Grid

  3. PS1B: Types of Forces I can: • Describe what causes and affects friction • Describe the forces acting on an object: • normal force • frictional forces • Weight (mg) • Gravity • effort force • resistance forces • Describe the relationship between force, mass and acceleration

  4. Rate your ability on the learning target: 32 • F: I don’t meet standard. Work shows very little understanding of the standard. I make lots of mistakes & need lots of help. • D: Work shows a below average understanding of the standard. I barely meet standard. I make many mistakesand often need help • C: Work shows an average understanding of the standard.I make frequent mistakes, but my work shows I understand things most of the time. • B: Work shows an above average understanding of the standard. I could do it myself without help, but I sometimes make a few mistakes and need some help. • A: My work shows an excellent understanding of every aspect of the standard. I could teach how to do this to someone else. I rarely make mistakes. I don’t need help 0 0 0 0 0 0 10 Countdown

  5. PS1C: Balanced & Unbalanced Forces • Given a description of motion be able to identify the net forces acting on the object • Speeding up • Slowing down • Constant speed • Not moving • Predict the resulting motion of an object given: • Forces acting on the object AND initial motion

  6. Rate your ability on the learning target: 32 • F: I don’t meet standard. Work shows very little understanding of the standard. I make lots of mistakes & need lots of help. • D: Work shows a below average understanding of the standard. I barely meet standard. I make many mistakesand often need help • C: Work shows an average understanding of the standard.I make frequent mistakes, but my work shows I understand the standard most of the time. • B: Work shows an above average understanding of the standard. I could do it myself without help, but I sometimes make a few mistakes and need some help. • A: My work shows an excellent understanding of every aspect of the standard. I could teach how to do this to someone else. I rarely make mistakes. I don’t need help 0 0 0 0 0 0 10 Countdown

  7. Why will the 100 gram car accelerate faster than the 200 gram car? 32 • Because the 100 gram car is more unbalanced toward the resistance force • Because the 100 gram car is more unbalanced toward the effort force • Because the car has less friction • Because the car has more effort force 0 0 0 0 Both powered by 1 mousetrap Normal Normal Effort Friction Friction Effort 0 10 Weight (mg) Weight (mg) 100 grams 200 grams Countdown

  8. The two mousetrap car’s have the same mass and are unwinding. One is powered by 2 mousetraps the other by one. Which is true? 32 • The effort force for the 2 mousetrap powered car will be stronger • The friction force for the 2 mousetrap car powered will be stronger • The effort force & friction force for the 2 mousetrap powered car will be stronger 0 0 0 Normal Normal Effort Friction Friction Effort 0 10 Weight (mg) Weight (mg) 1 mousetrap 2 mousetraps Countdown

  9. Which car will accelerate slower? 32 • 1 mousetrap powered car • 2 mousetrap powered car • Same 0 0 0 Normal Normal Effort Friction Friction Effort 0 10 Weight (mg) Weight (mg) 1 mousetrap 2 mousetraps Countdown

  10. Why does the friction remain the same size for the 2 mousetrap cars? 32 • The 2 mousetrap car is more massive • The two car’s effort force is the same • Mass, gravity, and traction is the same for both cars • Mass and gravity is the same for both cars 0 0 0 0 Normal Normal Effort Friction Friction Effort 0 10 Weight (mg) Weight (mg) 1 mousetrap 2 mousetraps Countdown

  11. Are the net forces balanced or unbalanced? 32 • Balanced net forces • Unbalanced net forces • Both balanced and unbalanced net forces • Neither balanced or unbalanced net forces 0 0 0 0 Normal Normal Effort Friction Friction Effort 0 10 Weight (mg) Weight (mg) 1 mousetrap 2 mousetraps Countdown

  12. Which net force is more unbalanced? 32 • The mousetrap car powered by 2 mousetraps • The mousetrap car powered by 1 mousetrap • They have the same unbalanced net force 0 0 0 Normal Normal Effort Friction Friction Effort 0 10 Weight (mg) Weight (mg) 1 mousetrap 2 mousetraps Countdown

  13. Why does the 2 mousetrap powered car accelerate faster than the one mousetrap powered car? 32 • Because the 2 mousetrap powered car is more unbalanced toward the resistance force • Because the 2 mousetrap powered car is more unbalanced toward the effort force • Because the car has less friction • Because the car has more effort force 0 0 0 0 Normal Normal Effort Friction Friction Effort 0 10 Weight (mg) Weight (mg) 1 mousetrap 2 mousetraps Countdown

  14. Which will be true about the forces below for the 200 gram mousetrap car? 32 • It will have more weight • It will have more normal force • It will have more friction • It will have more effort force • All of the above • Answers 1-3 0 0 0 0 0 0 Both powered by 1 mousetrap Normal Normal Effort Friction Friction Effort 0 10 Weight (mg) Weight (mg) 100 grams 200 grams Countdown

  15. Which car will accelerate slower? 32 • 100 gram car • 200 gram car • Same 0 0 0 Both powered by 1 mousetrap Normal Normal Effort Friction Friction Effort 0 10 Weight (mg) Weight (mg) 100 grams 200 grams Countdown

  16. Why will the 100 gram car accelerate faster than the 200 gram car? 32 • Because the 100 gram car is more unbalanced toward the resistance force • Because the 100 gram car is more unbalanced toward the effort force • Because the car has less friction • Because the car has more effort force 0 0 0 0 Both powered by 1 mousetrap Normal Normal Effort Friction Friction Effort 0 10 Weight (mg) Weight (mg) 100 grams 200 grams Countdown

  17. The 2 cars are coasting. Which car will accelerate faster (slow down faster)? 32 • 100 gram car • 200 gram car • Same 0 0 0 Both powered by 1 mousetrap Normal Normal Effort Friction Friction 0 10 Weight (mg) Weight (mg) 100 grams 200 grams Countdown

  18. Why will the 200 gram car accelerate faster than the 100 gram car? 32 • Because the 200 gram car is more unbalanced toward the resistance force • Because the 200 gram car is more unbalanced toward the effort force • Because the car has less friction • Because the car has more effort force 0 0 0 0 Both powered by 1 mousetrap Normal Normal Effort Friction Friction Effort 0 10 Weight (mg) Weight (mg) 100 grams 200 grams Countdown

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