N E W T O N ’ S 1 S T L AW R E V I E W ( AG A I N )

NET FORCES

ENTRY TASK:

A. Label each arrow for the force acting on the person

B. Predict what is likely happening to the velocity of the person

C. Explain what you know about forces and what you see that causes you to make the prediction from B

C. EXPLAIN PREDICTION

If there is a Net Force

1. Net force results in velocity increasing in direction of larger force

2. Describe forces3. Relate to velocity

prediction

No Net Force

1. No net force results in constant velocity (or no velocity)

2. Describe forces3. Relate to velocity

prediction

AGENDA 12/1

1. Turn In Science Fair Assignment #3 completed

2. Group Review Activity

3. Correct Newton’s 1st Law Review

4. Introduce Formal Lab Report Guide

GROUP REVIEW

In groups of 3:

• 1 large white board• 1-2 white board markers (that work)• Paper towel (for erasing white board)

CREATE A SCENARIO

a. What motion could be caused by these forces?

b. Draw/ describe a situation that could be produced by these forces

c. Label the arrows for the forces they represent

d. Explain what you know about forces and what you see that tells you the motion you describe in b is possible.

CREATE A SCENARIO

a. What motion is the object experiencing?

b. Draw the force arrows that would produce that motion

c. Label the arrows for the forces they represent

d. Explain what you know about forces and why the arrows you drew would produce the motion you described in a.

D. EXPLAIN PREDICTION

Velocity Changing

1. Changes in velocity are caused by a net force. Velocity changes in direction of larger force

2. Describe velocity prediction

3. Relate to forces drawn

Velocity Constant

1. Constant Velocity is caused by balanced forces (no net force).

2. Describe velocity prediction

3. Relate to forces drawn

CREATE A SCENARIO

a. What motion could be caused by these forces?

b. Draw/ describe a situation that could be produced by these forces

c. Label the arrows for the forces they represent

d. Explain what you know about forces and what you see that tells you the motion you describe in b is possible.

CREATE A SCENARIO

a. What motion is the object experiencing?

b. Draw the force arrows that would produce that motion

c. Label the arrows for the forces they represent

d. Explain what you know about forces and why the arrows you drew would produce the motion you described in a.

VELOCITY AND FORCES

If the velocity of an object is changing, what do we know about the forces acting on the

object?

Describe an activity we have done in class that helped us see this relationship.

Include what we saw and what that observation meant.

CORRECT REVIEW

FORMAL LAB REPORT GUIDE

HOMEWORK:

• Review for Quiz Thursday• Self quiz with flashcards• Self quiz with PowerPoint review• Attend Review session with Ms. BKL Wednesday from 1-2pm

(optional)