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Computer Simulation Review

Computer Simulation Review. PS1B: Types of Forces. I can: Describe what causes 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.

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Computer Simulation Review

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  1. Computer Simulation Review

  2. PS1B: Types of Forces I can: • Describe what causes 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

  3. Please select a Team. 30 • Team 1 • Team 2 • Team 3 • Team 4 • Team 5 • Team 6 0 10 Countdown

  4. The dog was pushed across the screen to the right. What was the effort force? 30 • The dog • The engine • The person • Friction 0 0 0 0 0 10 Countdown

  5. The dog was pushed across the screen to the right. What was the resistance force? 30 • The dog • The engine • The person • Friction 0 0 0 0 0 10 Countdown

  6. When the dog was pushed across the screen & sped up what force was bigger? 30 • Effort force • Resistance force • Gravity • Normal • Weight 0 0 0 0 0 Effort Resistance 0 10 Countdown

  7. Why does the effort force have to be bigger than the resistance (friction) for it to speed up? 30 • For motion to occur the resistance force must be zero • The effort force must be stronger than gravity • Friction must be overcome to start moving it 0 0 0 Effort Resistance 0 10 Countdown

  8. More effort force is applied to the dog. What happens? 30 • The effort force arrow became much bigger than the resistance force • The effort force and resistance force grew at the same rate. • The effort force and resistance remained the same 0 0 0 Effort Resistance 0 10 Countdown

  9. When the effort force was much bigger than friction what happened? 30 • The acceleration rate remained the same as before (sped up at the same rate) • The acceleration rate increased slowly • The acceleration rate increased quickly 0 0 0 Effort Resistance 0 10 Countdown

  10. Team Scores

  11. What percentage of your current points would you like to wager on the next question? 30 • 0% • 25% • 50% • 75% • 100% 0 10 Countdown

  12. What causes the friction (resistance force) to occur and/or effects it? 30 • The amount of gravity • Pushing the object • The mass of the object • How well the object grips the ground • 2-4 • 1-4 0 0 0 0 0 0 0 10 Countdown

  13. Team Scores

  14. When the effort force was just a little bigger than friction what happened? 30 • The acceleration rate remained the same as before (sped up at the same rate) • The acceleration rate increased slowly • The acceleration rate increased quickly 0 0 0 Effort Resistance 0 10 Countdown

  15. A greater acceleration occurred when the dog was pushed or the file cabinet? 30 • Dog • File cabinet 0 0 Effort Resistance 0 10 Countdown

  16. Why will the dog have a greater acceleration rate than the file cabinet? 30 • The dog has less weight • The dog has less friction • The dog has less mass • The dog has more effort force 0 0 0 0 Effort Resistance 0 10 Countdown

  17. The 2 objects are pushed with the same force. Which is the correct force vector? 30 Effort • ……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………….. • . 0 0 Resistance Effort Resistance Effort Resistance Effort Resistance 0 10 Countdown

  18. More effort force (same massed object) means what? 30 • The object will accelerate faster • The object will accelerate slower • The object will not accelerate 0 0 0 0 10 Countdown

  19. Why will more effort force cause an object to accelerate faster? 30 • Effort force is much larger than the resistance force • Effort force is just a little bigger than the resistance force • Effort force is equal to the resistance force. 0 0 0 0 10 Countdown

  20. More mass (same amount of effort force) means what? 30 • The object will accelerate faster • The object will accelerate slower • The object will not accelerate 0 0 0 0 10 Countdown

  21. Why will more massive objects accelerate slower? 30 • They have less effort force • They have more weight • They have more friction • They have more gravity 0 0 0 0 0 10 Countdown

  22. 2 objects are rolling. Which object will slow down (decelerate) faster? 30 • The less massive object • The more massive object • They will decelerate (slow down) at the same rate. 0 0 0 0 10 Countdown

  23. Team Scores

  24. What percentage of your current points would you like to wager on the next question? 30 • 0% • 25% • 50% • 75% • 100% 0 10 Countdown

  25. Why will the more massive object slow down faster 30 • It has more weight • It has more gravity • It has more momentum • It has more friction 0 0 0 0 0 10 Countdown

  26. Team Scores

  27. Participant Scores

  28. 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

  29. Rate your ability on the following learning target:Describe what causes and affects friction • F: I don’t understand how.I make lots of mistakes. • D: I have a below average understanding. I can do it, but make many mistakes. • C: I have an average understanding.I can do some of it, but I make several mistakes. • B: I have an above average understanding. I could do it myself without help, but I sometimes make a few mistakes. • A: Excellent understanding. I could teach how to do this to someone else. I rarely make mistakes. 0 0 0 0 0

  30. Rate your ability on the following learning target:Describe the forces acting on an object: normal, frictional, Weight (mg), Gravity, effort, resistance forces • F: I don’t understand how.I make lots of mistakes. • D: I have a below average understanding. I can do it, but make many mistakes. • C: I have an average understanding.I can do some of it, but I make several mistakes. • B: I have an above average understanding. I could do it myself without help, but I sometimes make a few mistakes. • A: Excellent understanding. I could teach how to do this to someone else. I rarely make mistakes. 0 0 0 0 0

  31. Rate your ability on the following learning target:Describe the relationship between force, mass and acceleration • F: I don’t understand how.I make lots of mistakes. • D: I have a below average understanding. I can do it, but make many mistakes. • C: I have an average understanding.I can do some of it, but I make several mistakes. • B: I have an above average understanding. I could do it myself without help, but I sometimes make a few mistakes. • A: Excellent understanding. I could teach how to do this to someone else. I rarely make mistakes. 0 0 0 0 0

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