PS1C – Net Forces acting on an Object “Changing Direction”

1. PS1C – Net Forces acting on an Object“Changing Direction” Nongraded

2. Enter #1 32 • Enter answer text... 0 Non-Response Grid 0 10 Countdown

3. 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 when a new force acts on it. (Turning objects)

4. Rate your ability on the following learning target: 32 • 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 0 10 Countdown

5. The girl in the picture is moving. What is the correct description of her motion? 32 • Constant Speed • Speeding Up • Slowing down 0 0 0 Effort Resistance 0 10 Countdown

6. An unbalanced net force in the direction of the red arrow. What will happen to the motion? 32 • Turn to the left • Turn to the right • Continue to go straight 0 0 0 Effort Resistance 0 10 Countdown

7. An unbalanced net force in the direction of the red arrow. What will the new forces look like? 32 • The effort 2 will be stronger than the resistance 2 • The effort 2 will be weaker than the resistance 2 • The effort 2 will be the same size as the resistance 2 0 0 0 Effort 2 Resistance Effort 1 0 10 Resistance 2 Countdown

8. Why did the wheelbarrow turn? 32 • An unbalanced net force was applied to the left • A balanced net force was applied to the left • A unbalanced net force was applied to the right • A balanced net force was applied to the right 0 0 0 0 Effort 2 Resistance Effort 1 0 10 Resistance 2 Countdown

9. The girl in the picture is moving. What is the correct description of her motion? 32 • Constant Speed • Speeding Up • Slowing down 0 0 0 Effort Resistance 0 10 Countdown

10. An balanced net force in the direction of the red arrow. What will the new forces look like? 32 • The effort 2 will be stronger than the resistance 2 • The effort 2 will be weaker than the resistance 2 • The effort 2 will be the same size as the resistance 2 0 0 0 Resistance 2 -20 N Resistance Effort 1 0 10 Effort 2 +20 N Countdown

11. A balanced net force in the direction of the red arrow. What will happen to the motion? 32 • Turn to the left • Turn to the right • Continue to go straight 0 0 0 Effort Resistance 0 10 Countdown

12. Why did the wheelbarrow NOT turn? 32 • An unbalanced net force was applied to the left • A net force of zero was applied • A unbalanced net force was applied to the right 0 0 0 Effort 2 Resistance Effort 1 0 10 Resistance 2 Countdown

13. Participant Scores (8 pts possible)

14. 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 when a new force acts on it. (Turning objects)

15. Rate your ability on the following learning target: 32 • 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 0 10 Countdown