Unit 4E: Friction Friction T Unit 4E: Friction.

Slides:



Advertisements
Similar presentations
September 25, 2009 Bellringer Would it be better if the floor at the skating rink had carpet on it? Explain.
Advertisements

Friction.
Unit 4E: Friction. Friction Unit 4E: Vocabulary- Unit 4E: Vocabulary Useful Words A force acting between two surfaces Friction caused by a body moving.
Unit 6E: Forces in action
Friction Dr. Lee Science Class.
Starter Name all the forces you can think of; Forces.
Friction: A Force That Opposes Motion
Friction When the arrow flies from the bow, it eventually slows down, falls down and stops. When a ball is thrown into the air, it eventually stops going.
Friction When the arrow flies from the bow, it eventually slows down, falls down and stops. When a ball is thrown into the air, it eventually stops going.
Forces.
CARS And Forces - Friction Friction To be able to: AllMostSome Say what is meant by friction (MYP 1/2) Explain why we sometimes slip (MYP 3/4) Analyse.
* Circuits and Conductors * Solids and Liquids * Keeping Things Warm * Friction * Moving and Growing * Habitats.
What is friction? Friction is the force that opposes the motion of an object Friction is when two things rub against each other If you push a book across.
Friction Friction is a force which acts on surfaces that rub together. Examples Rubber tyres on a road Air resistance on a parachute Climbing shoes on.
Frictional Forces LO: to describe the force which opposes movement and investigate the best shape for a glider TASK: Lightly push your book across.
Friction
Friction is a force between two surfaces that are sliding, or trying to slide across one another, for example when you try to push a toy car along the.
Friction.
Friction 4/26/2017 Learning Outcome: Starter:
Friction, Air and Water Resistance
Alkarma Language School Friction ____________________ What is friction?
Friction and Gravity. What is friction? The force that two surfaces exert on each other when they rub against each other.
Friction 1. What is friction? It is a kind of contact force It forms between two surfaces that move over each other Friction.
Learning sequence: Friction. This learning sequence is based on the medium term plan for the QCA unit 4E Friction.
Lesson 6 Objectives Observe the properties of sliding friction. Measure the force of friction on a wooden block pulled across different surfaces. Measure.
Activating Strategy A chair will be placed in the middle of the floor. Teacher question: Are there any forces acting on this chair? Invite a student to.
The rubbing of one object or surface against another.
Forces L3: Friction Learning Objectives:
What is friction? If you rub your hands together, they get warm because there is resistance to the rubbing motion. What is the name of this resistive force?
Forces and motion 5.P.5A.5 Design and test possible devices or solutions that reduce the effects of friction on the motion of an object.
Lesson Aims: Friction Where do they need to put the sledge to to get it to start moving? Why doesn’t sledge move on the flatter part of the slope? Demonstrate:
How does friction affect motion?
FRICTIONAL FORCE.
11.2 Forces.
Friction.
Forces.
Lesson Aims: Friction Where do they need to put the sledge to get it to start moving? Why doesn’t sledge move on the flatter part of the slope? Demonstrate:
FRICTION Notes!.
FRICTION L/O: To understand that friction is the force that occurs when two objects move over each other.
WARM UP: Please grab your sheet from yesterday.
PHYSICS FRICTION.
Friction.
Friction and Gravity Notes
Name 3 things that forces can do to an object
What Happens When Forces Act on Objects?
FRICTION Prepared by: Mr. Navneet Gupta
FORCES & THEIR EFFECTS In This Topic We Will Learn About:
Standards S8P3. Obtain, evaluate, and communicate information about cause and effect relationships between force, mass, and the motion of objects. Construct.
Friction.
Forces Georgia Performance Standards
Unit 3E: Magnets and Springs
Friction 01 January 2019 Objectives: To describe the causes and effects of frictional forces. Explain how a lubricant to reduce frictional forces.
Forces.
Friction.
Match the vocabulary word and its correct definition.
Forces Review 8th Grade Science.
Warm up 9/14 Draw and Solve.
Friction.
Friction.
FRICTION.
Chapter 5-2 The Foundations of Physical Science
How does friction affect motion?
What is friction? Friction = force that opposes the motion of two surfaces that are touching Always happens in the direction opposite of the direction.
A force that opposes motion
Newton's Second Law F=m/a Static Friction Sliding Friction
A force that opposes motion
Friction, Gravity, & Elastic Forces
Forces.
Presentation transcript:

Unit 4E: Friction Friction T Unit 4E: Friction

Useful Words Friction A force acting between two surfaces Unit 4E: Vocabulary Useful Words Friction A force acting between two surfaces Air resistance Friction caused by a body moving through air Water resistance Friction caused by a body moving through water Forcemeter A piece of equipment for measuring force Newtons The units in which force is measured Surface area The face of a body V Unit 4E: Vocabulary-

Unit 4E: Forcemeters : L.O. 1,2 : NC. 4.2e 3 Newtons 7 Newtons 5 Newtons 8.5 Newtons A Unit 4E: Forcemeters : L.O. 1,2 : NC. 4.2e

Unit 4E: Using Forcemeters Try hanging different objects from around the classroom on the forcemeter. Write down the readings you get! Object Forcemeter reading in Newtons A Unit 4E: Forcemeters : L.O. 1,2 : NC. 4.2e

Unit 4E: Forces against movement This picture shows the same box being pushed on different surfaces. D Unit 4E: Forces against movement: L.O. 3 : NC. 4.2d

Unit 4E: Forces against movement D Unit 4E: Forces against movement: L.O. 3 : NC. 4.2d

I Investigation: Which surface do objects slide on most easily? Unit 4E: Investigation Investigation: Which surface do objects slide on most easily? Which of these surfaces will a weighted box slide across most easily? A) Vinyl B) Wood C) Carpet When you have chosen, explain why you think this surface will be the easiest to slide across I Unit 4E: Investigation : L.O. 4, 5, 6, 7, 8 : NC. 1.1b; 1.2d, e, f, g, h, j

Unit 4E: Investigation (cont.) Investigation: How are you going to test this? “What variable are you testing? (the thing that changes)” “What variable will you change?” “What variables will remain the same to make it a fair test?” “What will you measure?” Record the results as a bar chart, ask for help if you’re unsure. I Unit 4E: Investigation : L.O. 4, 5, 6, 7, 8 : NC. 1.1b; 1.2d, e, f, g, h, j

Unit 4E: What is this force? D Unit 4E: Forces against movement: L.O. 3 : NC. 4.2d

Unit 4E: High and Low Friction Is it best for each of the following to have high or low friction? Situation High Friction Low friction Tyres on a car Playground slide Goalkeeper’s gloves Shoe laces A drawer Ice skates Climbing rope D Unit 4E: High and Low Friction: L.O. 3 : NC. 4.2d

Unit 4E: Water Resistance Which shape do you think will travel through the water the quickest? Why do you think this one will be the quickest? Test different shapes to see how quickly they move through the liquid. A Unit 4E: Water Resistance: L.O. 11, 12 : NC. 4.2 c, d

Unit 4E: Water Resistance movement water D Unit 4E: Water Resistance: L.O. 13 : NC. 4.2 c, d

Unit 4E: Air Resistance: L.O. 13 : NC. 4.2 c, d movement air resistance D Unit 4E: Air Resistance: L.O. 13 : NC. 4.2 c, d

Air resistance- force on an object Unit 4E: Summary brakes ice skates Rough: high friction Smooth: low friction tyres slide goalkeeper’s gloves drawers Force between moving solid surfaces Friction: a force Air resistance- force on an object moving through air Water resistance- force on an object moving through water Big area: High resistance Non streamlined: High resistance Streamlined: Low resistance Small area: Low resistance dart streamlined car sail (boat) parachute person walking through water submarine fish boat S