# Unit 5 Packet

Regular Physics
To optimize your use of this resource, click on the links for individual questions in your unit packet. The link will bring you to online help related to that question. Carefully read the resource material and procede to answer the questions in your unit packet. Answers and complete solutions to the Supplementary Challenges section can also be reviewed.

Objective 1

Work (pp. 1-4)

It's All Uphill Lab (pp. 5-6)

Objective 2

Power (pp. 7-8)

Powerhouse Lab (pp. 9-10)

Objective 3

Work-Energy Bar Charts (pp. 11-12)

Energy Concepts (pp. 13-16)

Balancing the Score (pp. 19-20)

Work-Energy Conversion (pp. 21-22)

Stopping Distance vs. Velocity Lab (pp. 29-32)

All Work and No Play (pp. 23-24)

Cars and Barriers (p. 33)

Pizza Parlor Physics (pp. 35-36)

Objective 4

Work-Energy Bar Charts (pp. 11-12)

Energy Concepts (pp. 13-16)

Energy of a Pendulum Lab (pp. 17-18)

Balancing the Score (pp. 19-20)

Total Mechanical Energy on an Incline Lab (pp. 25-27)

Sliding Masses and Kinetic Energy (p. 34)

### Work (pp. 1-4)

#1 Examples and Non-Examples of Work

#2 Units of Work

#3 Work as F*d*cosine(Theta)

#4 Identifying the Force Which Does Work

#5 Work as F*d*cosine(Theta)

#6 Determining Whether a Force Does Work

#7 Force, Work and Acceleration

#8 Average Force and Force-Displacement Plots

### It's All Uphill Lab (pp. 5-6)

Work as F*d*cosine(Theta)

Meaning of Theta in F*d*cosine(Theta) Expression

Work-Energy Relationship

Potential Energy

Kinetic Energy

### Power (pp. 7-8)

#1 Distinction Between Work and Power

#2 Distinction Between Work and Power

#3 Power Equation (Using Equations as Guides to Thinking)

#4 Power Equation (Using Equations as Guides to Thinking)

#5 Power as Work/Time - Basic Computation

#6 Use of Conversion Factors

#7 Use of Conversion Factors

### Powerhouse Lab (pp. 9-10)

Distinction Between Work and Power

Free-Body Diagrams

Power as Work/Time - Basic Computation

### Work Energy Bar Charts (pp. 11-12)

Additional information regarding the work-energy concepts which parallels the discussion on this instructional page can be found in Lesson 2c of Unit 5 of The Physics Classroom.

### Energy Concepts (pp. 13-16)

#1 Potential Energy

Internal vs. External Forces

Energy Conservation

Energy Conservation

Energy Conservation

Internal vs. External Forces

Work-Energy Theorem

Work-Energy Bar Charts

Internal vs. External Forces

Work-Energy Theorem

Work-Energy Bar Charts

Internal vs. External Forces

Work-Energy Theorem

Work-Energy Bar Charts

Internal vs. External Forces

Work-Energy Theorem

Internal vs. External Forces

Work-Energy Theorem

#10 Work-Energy Theorem

### Energy of a Pendulum Lab (pp. 17-18)

Internal vs. External Forces

Drawing Free-Body Diagrams

Potential Energy

Kinetic Energy

Work-Energy Theorem

Work as F*d*cosine(Theta)

Meaning of Theta in F*d*cosine(Theta) Expression

Work-Energy Bar Charts

### Balancing the Score (pp. 19-20)

#1and #2 Work-Energy Bar Charts

Work-Energy Theorem

#3 Work-Energy Bar Charts

Work-Energy Theorem

#4 Work-Energy Bar Charts

Elastic Potential Energy

Work-Energy Theorem

### Work-Energy Conversion (pp. 21-22)

#1, #2, #4, and #5

Work-Energy Bar Charts

Kinetic Energy

Potential Energy

Work-Energy Theorem

#3 Using Equations as Guides to Thinking

Velocity-Stopping Distance Relationship

### All Work and No Play Lab (pp. 23-24)

Work as F*d*cosine(Theta)

Meaning of Theta in F*d*cosine(Theta) Expression

Free-Body Diagrams

Work-Energy Relationship

### Total Mechanical Energy on an Incline Lab (pp. 25-27)

Internal vs. External Forces

Drawing Free-Body Diagrams

Potential Energy

Kinetic Energy

Energy Conservation

Work-Energy Bar Charts

### Stopping Distance vs. Velocity Lab (pp. 29-32)

Free-Body Diagrams

Work-Energy Theorem

Work-Energy Bar Charts

Graphical Analysis of Data

Stopping Distance and Velocity

Equations as Guides to Thinking

Kinematic Equations

### Cars and Barriers (p. 33)

Work-Energy Theorem

Stopping Distance and Velocity

Work as F*d*cosine(Theta)

### Sliding Masses and Kinetic Energy (p. 34)

Potential Energy and Kinetic Energy

Energy Conservation

### Pizza Parlor Physics (pp. 35-36)

Work-Energy Theorem

Kinetic Energy

Work as F*d*cosine(Theta)

Newton's Second Law

Free-Body Diagrams

Kinematic Equations

### Supplementary Challenges

See answers and accompanying solutions to all odd-numbered problems.
Additional resources for physics students are available through links on the GBS Physics Home Page. Such resources include the Multimedia Physics Studios , a collection of animations and movies which illustrate key physics concepts and the Shockwave Physics Studios, a collection of interactive Shockwave exercises.