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Force A push or pull one thing exerts on another
What do you know? ( Examples, pictures, definitions, experiences ) Normal Force Weight Applied Force TensionFriction Air resistance
Which of the following would be a unit that measures force? 1.kilograms 2.ounces 3.pounds 4.meters per second
Units of force English system –Pounds (lbs.) Metric system –Newtons (N) Quarter pounder 0.22 pounds = 1 Newton
What force is acting up on the skydivers? 1.Normal force 2.Weight 3.Tension 4.Air resistance
What force is acting down on the skydivers? 1.Normal force 2.Weight 3.Tension 4.Friction
What are the two forces acting on these skydivers? Weight (force because of gravity) Air resistance
What is the name of the upward force that the table is supplying to the cell phone pictured below? 1.Weight 2.Friction 3.Tension 4.Normal 5.Air resistance
What are the two forces acting on this cell phone? Weight (force because of gravity) Normal Force
What are the other two forces acting on the truck? FrictionApplied Force
What is the name of the force drawn in the picture? 1.Air resistance 2.Weight 3.Tension 4.Friction 5.Normal Force 6.Applied Force
When I hit the brakes in a car, the car comes to a stop because _______ acts between the tires and the road. 1.Air resistance 2.Weight 3.Tension 4.Friction 5.Normal Force 6.Applied Force
Balanced Forces When forces are equal in size and opposite in direction. 5 N
Unbalanced Forces Forces that are not equal in size OR 45 N 15 N
Unbalanced Forces Forces that are not opposite in direction.
Net Force The overall force acting on an object. Who’s winning and by how much?
Net Force Net force = 12 N 4 N 12 N 20 N 16 N
What is the magnitude of the net force acting on the object? 20 N 10 N 12 N 10 N
What is the direction of the net force acting on the object? 20 N 10 N 12 N 10 N 1.up 2.down 3.left 4.right
Force vectors When adding vectors, you can move them, but you can’t change the size or direction 4 N 3 N
Given the following picture, how would you describe the weight and normal force? 1.Balanced 2.Unbalanced
Examples in SMART
A change of position over time. Must go a distance Caused by force Can be relative running Skipping driving the floor A statue Sitting still motion.
They describe the motion of objects in terms of their MASS and the FORCES acting on them Mass – the amount of matter that an object contains a measure.
Students should know the overall effect of many forces acting on an object at the same time. The size and direction of this net force determines the.
17.2 Forces and Motion Mr. Perez. Important Vocabulary Gravitation Force Balanced forces Unbalanced forces Inertia Contact force Friction Non-contact.
Forces Pages 188 to 191. Forces Force - a push or a pull, measured in Newtons (N) Contact Force – is a push or a pull one object applies to another object.
The Nature of Force Section 10.1 Page 374. Objectives for 10.1 Describe what a force is. Know that a force is described with both direction and magnitude.
Unit 2.1 Force and Motion Learning Goal (TEKS): Identify and describe the changes in position, direction, and speed of an object when acted upon by unbalanced.
Force A push or pull exerted on an object.. Forces… Forces are vectors Forces are vectors –Have both magnitude and directions Net Force Net Force –Vector.
What is net force?. All the forces acting on an object.
2.1 Forces. An object in mechanical equilibrium is stable, without changes in motion.
Forces In Science: A force Balanced Forces – Balanced forces acting on an object EXAMPLES: or.
Force. Something that changes the state of rest or the state of motion of an object. Can be a push or a pull Unit of measure Newtons N.
Force in Mechanical Systems. Objectives Define force, and describe how forces are measured. Define force, and describe how forces are measured. Describe.
MS. MORGAN Force. What is a Force? Something that changes the state of rest or the state of motion of an object. Can be a…. push or a pull Unit of measurement:
Today's objective I can explain what a force is, how forces are measured, and how to calculate net force.
Laws of Motion Newton’s First Law. Force changes motion A force is a push or pull, or any action that is able to change motion.
The Nature of Forces. Force a push or pull that gives energy to an object sometimes causes a change in motion.
MRS. WHARTON’S SCIENCE CLASS The Nature of Force.
Describing Motion Newton’s Laws. First we need to define the word FORCE: A push or a pull exerted on an object in order to change the motion of the object.
88 Balanced and Unbalanced Forces 87 11/03/2015 Starter: Paste Starter here when done. Application/ Connection: Complete Ws. Turn in when done Exit: Think.
“Law of Acceleration” Forces can be BALANCED or UNBALANCED Balanced forces are equal in size (magnitude) and opposite in direction UNbalanced.
Force, Motion, and Design Quarter 2 1. What will we learn? The students will be able to describe how different forces (friction, gravity, and change in.
Chapter Forces & 5.3 Forces & Equilibrium pp & pp
Describing Motion Newtons Laws. First we need to define the word FORCE: The cause of motion (what causes objects to move) Two types of forces –Pushes.
1 of 8© Boardworks Ltd of 8© Boardworks Ltd 2008 If the ending force acting on an object is not zero, all the forces are said to be unbalanced.
The Nature of Force. Read Newton’s First Law above and then look at the picture. Write a paragraph predicting the motion of the soccer ball. Will the.
Describing Motion Newton’s Laws. First we need to define the word FORCE: The cause of motion (may cause objects to start/stop moving or change directions)
6.1 Newton’s First Law pp NEWTON’S THREE LAWS OF MOTION In his book, Principia, Newton described the three laws of motion. He did not discover.
Forces. I. Section 1 A. Newton- (N) the SI unit for the magnitude of a force. Also called weight. B. Force- a push or a pull. Described by its magnitude.
A force is It is the cause of an acceleration, or the change in an object's velocity. A force can cause an object to: -- Forces -- Changes in Motion tart.
What is Newton’s 3 rd Law? The Questions. Newton’s 3 rd Law says that for every action force there must be an equal and opposite reaction force. The.
Forces. Force = A push or a pull Push PuLL What things produce forces? PUSH PULL.
Forces A force is an interaction (push or pull) between objects. Forces can be divided into two categories: 1.Contact forces Push or pull between two objects.
Newton’s Laws Forces and Motion. Laws of Motion formulated by Issac Newton in the late 17 th century formulated by Issac Newton in the late 17 th century.
Review- What is happening in this video? How? Review- What is happening in this video? How?
Can Humans fly?. Forces understand that forces act in pairs identify the forces that act between objects describe how rockets and jets work force.
Bell Work Consider the following question, select (a) A=Agree, (b) D=Disagree (c) NS=Not Sure A brick is lying on the bed of a truck, ___ (1) the brick.
Chapter Six: Laws of Motion 6.1 Newton’s First Law 6.2 Newton’s Second Law 6.3 Newton’s Third Law and Momentum.
1 Describing Motion Newton’s Laws. 2 First we need to define the word FORCE: The cause of motion (what causes objects to move) Two types of forces –Pushes.
Describing Motion Newton’s Laws Notes. First we need to define the word FORCE: The cause of motion (what causes objects to move) Two types of forces –Pushes.
1 of 9© Boardworks Ltd of 9© Boardworks Ltd 2010 What are forces?
LAWS OF MOTION. A force is a push or pull, or any action that is able to change motion.
A force is a push or pull that can cause motion (speed up, slow down, stop, move, or change direction) Force is measured in Newtons (N) Force is.
Chapter 4. Two forces are exerted on an object. What third force would make the net force point to the left? (1) (2)(3)(4)
Bell Ringer: What do you think causes an object to start moving, stop moving, or change direction? What do you think causes an object to start moving,
Forces and Newton’s 3 Laws of Motion Robert Strawn Compiled 10/16/11.
Do Now: What are Newton’s 3 Laws of Motion?. Do Now: What are Newton’s 3 Laws of Motion?
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