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PS1C – Net Forces acting on an Object “Changing Direction”. Nongraded. Enter #1. 32. Enter answer text. 0. Non-Response Grid. 0. 10. Countdown. PS1C: Balanced & Unbalanced Forces. Given a description of motion be able to identify the net forces acting on the object Speeding up

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

32

0

Non-Response Grid

0

10

Countdown

• 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)

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

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

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

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

Why did the wheelbarrow turn? What will the new forces look like?

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

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

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

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

Why did the wheelbarrow NOT turn? What will happen to the motion?

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

Participant What will happen to the motion?Scores (8 pts possible)

PS1C: Balanced & Unbalanced Forces What will happen to the motion?

• 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)

Rate your ability on the following learning target What will happen to the motion?:

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