Presentation is loading. Please wait.

Presentation is loading. Please wait.

Do Now: How do we determine distance travelled from a velocity vs. time graph? How far did the object travel in 3 seconds?

Published byTheodore Crawford Modified over 6 years ago

Similar presentations

Presentation on theme: "Do Now: How do we determine distance travelled from a velocity vs. time graph? How far did the object travel in 3 seconds?"— Presentation transcript:

1 Do Now: How do we determine distance travelled from a velocity vs. time graph? How far did the object travel in 3 seconds?

2 Aim: How do we represent the force between charged objects ?
They repel due to a force… what affects the size of this force? The charges given to the pith balls and the distance between them. HW: Coulomb’s Law WS (Side 1)

3 Balloon Demonstration
Why do the balloons repel? What is between the balloon that “PUSHES” them apart?

4 Coulomb’s Law Equation:
What equation is very similar to this one? What is this force (Fe)? q1 is charge on object 1 (C) q2 is charge on object 2 (C) r is distance between centers of objects (m) k is electrostatic constant (8.99 x 109 Nm2/C2) Where Fe is electrostatic force between two charged objects (F) Answer the prompt and label the variables… move quick.

5 Electrostatic Force Graphically
Fe Fe q r

6 Envelope Activity 1. What is the electrostatic force between two protons separated by a distance of 2m? 2. What is the distance between two charges with one having a charge of 5 C and another having a charge of -2 C if the Electrostatic force between them is 5x107 N? How do we show this graphically? F vs. q and F vs. r What happens if I want to know the force acting between more than 2 charges? Example: -5C (y), 4 (0), -7C (x) with distance 3 and 4 m. How do we describe the area around which a force is felt on a charge? What’s the name for this?

7

8 White Board Activity Three protons are separated from a single electron by a distance of 1 x 10-6 m. Find the electrostatic force between them. Is this force attractive or repulsive? *Careful with parenthesis! FE = 6.9 x N Answer is good…

9 Coulomb’s Law in 2D Find the net force on sphere B
Force and direction of A on B Force and direction of C on B Resultant force A -4C 1.5m B +3C C -8C 3m

10 Summary Activity What is the resulting electrostatic force if the distance between two objects is doubled? a. F b. 2F c. 4F d. 8F 2. What is the resulting electrostatic force between a charge of -3μC and 6μC if the distance between them is 300 m?

Download ppt "Do Now: How do we determine distance travelled from a velocity vs. time graph? How far did the object travel in 3 seconds?"

Similar presentations

Electric Forces and Fields

Electric Forces and Fields
Electrostatic Force Opposites Attract Like Charges Repel Holds Atom together!

Electrostatic Force Opposites Attract Like Charges Repel Holds Atom together!
Electric Force Chapter 17.2. Coulomb’s Law Coulomb’s Constant The proportionality constant k in Coulomb’s law is similar to G in Newton’s law of gravitation.

Electric Force Chapter Coulomb’s Law Coulomb’s Constant The proportionality constant k in Coulomb’s law is similar to G in Newton’s law of gravitation.
Electrostatics Electrostatics The study of electrical charges that can be collected and held in one place. The study of electrical charges that can be.

Electrostatics Electrostatics The study of electrical charges that can be collected and held in one place. The study of electrical charges that can be.
Coulomb’s law. Objectives Describe the historical development of the concepts of electromagnetic force. Describe and calculate how the magnitude of the.

Coulomb’s law. Objectives Describe the historical development of the concepts of electromagnetic force. Describe and calculate how the magnitude of the.
Electric Forces Physics A Static #3.

Electric Forces Physics A Static #3.
Electricity We will learn about 2 aspects of electricity 1)Charged objects apply forces to each other (like when a balloon sticks to a wall) 2)Circuits.

Electricity We will learn about 2 aspects of electricity 1)Charged objects apply forces to each other (like when a balloon sticks to a wall) 2)Circuits.
Electrostatic Force Coulomb’s Law. Charges Two charges of the same type repel one another ++ The two charges will experience a FORCE pushing them apart.

Electrostatic Force Coulomb’s Law. Charges Two charges of the same type repel one another ++ The two charges will experience a FORCE pushing them apart.
Electrostatics – Coulomb’s Law. Coulomb’s Law + + + + + + + + + + + + + + + + + + __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Charles Coulomb discovered that.

Electrostatics – Coulomb’s Law. Coulomb’s Law __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Charles Coulomb discovered that.
Static Electricity It’s electrifying!. Parts of an atom Electron Negatively charged Proton Positively charged Neutron Neutral.

Static Electricity It’s electrifying!. Parts of an atom Electron Negatively charged Proton Positively charged Neutron Neutral.
Coulomb’s Law. Answer Me!!!  An inflated balloon which has been rubbed against a person’s hair is touched to a neutral wall and remains attracted to.

Coulomb’s Law. Answer Me!!!  An inflated balloon which has been rubbed against a person’s hair is touched to a neutral wall and remains attracted to.
Electric Forces and Fields Chapter 17. Section 17-1 Objectives Understand the basic properties of electric charge Understand the basic properties of electric.

Electric Forces and Fields Chapter 17. Section 17-1 Objectives Understand the basic properties of electric charge Understand the basic properties of electric.
Electrostatics the study of electrical charges at rest Electrodynamics the study of electrical charges in motion opposite Two opposite types of charge.

Electrostatics the study of electrical charges at rest Electrodynamics the study of electrical charges in motion opposite Two opposite types of charge.
Aim: How can we explain Electrostatic Force?

Aim: How can we explain Electrostatic Force?
They’re Attractive & Repulsive at the Same Time. When two charges are brought together they either push away from each other or they pull towards each.

They’re Attractive & Repulsive at the Same Time. When two charges are brought together they either push away from each other or they pull towards each.
The effect of charge and distance on electric force

The effect of charge and distance on electric force
Electrostatic Force Coulomb’s Law. Charges Two charges of the same type repel one another ++ The two charges will experience a FORCE pushing them apart.

Electrostatic Force Coulomb’s Law. Charges Two charges of the same type repel one another ++ The two charges will experience a FORCE pushing them apart.
ELECTROSTATIC FORCE ELECTROSCOPE- a device used to determine the charge on an object.

ELECTROSTATIC FORCE ELECTROSCOPE- a device used to determine the charge on an object.
Electric Fields Chapter 14.1. What do you already know about charged particles? Like charges repel. Opposite charges attract. Electric charges exert a.

Electric Fields Chapter What do you already know about charged particles? Like charges repel. Opposite charges attract. Electric charges exert a.
Electrostatics – Coulomb’s Law. Tues / Wed Read Chapter 20 pp. 461-470 Homework: p. 477 1-3, 9-12 Wed/Thurs Do problems p. 478 20, 21, 22, 24, 25, 27.

Electrostatics – Coulomb’s Law. Tues / Wed Read Chapter 20 pp Homework: p , 9-12 Wed/Thurs Do problems p , 21, 22, 24, 25, 27.

Similar presentations

Ads by Google