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Physics and Measurement
Measurements Basic units of measure LengthMeter MassKilogram (1kg = 2.2lbs) WeightNewton (1kg = 10N) TimeSecond
Scalar vs. Vector Scalar Measurement that has magnitude (number) 5m Vector Measurement that has magnitude and direction 5m, east
Scalar vs. Vector Distance Measurement of length Displacement Measurement of distance in a certain direction Vector measured from starting point directly to end point
Distance vs. Displacement A person walks 2 miles North, then 4 miles East, and finally 2 miles South. Distance = 8 miles Displacement = 4 miles, East
Scalar vs. Vector Speed Amount of distance traveled in a given amount of time (m/s) Velocity Speed in a direction
Vectors ForForce (weight) EverElectric Field Strength AtAcceleration The Torque DDisplacement MMomentum VVelocity
Vector Components Vectors can be broken down into horizontal and vertical components Right Triangles θ H Hcos θ Hsin θ
Examples Find horizontal and vertical components 20m 30° X Y X = Hcos θ Y = Hsin θ X = 20cos 30 Y = 20sin 30 X = 17.32m Y = 10m
Examples Find horizontal and vertical components 4.6m 60° X Y X = Hcos θ Y = Hsin θ X = 4.6cos 60 Y = 4.6sin 60 X = 2.3m Y = 3.98m
Direction Vectors always have a direction N E S W
Direction What if you dont know which way is north? 90° 0° 270° 180°
Standard Convention 90° 0° 270° 180°
Example A student walks 6m at 0° and then 8m at 90°. What is the resultant displacement? 6m 8m R R= 10m, 53° θ
Speed and Acceration. distance Total distance an object travels from a starting point to ending point.
A jogger runs 145m in a direction 20.0 degrees east of north (vector A), and then runs 105m in a direction 35.0 degrees south of east (vector B). Using.
Describing Motion Topic 1. Base Units QuantityFundamental Unit LengthMeter (m) MassKilogram (kg) TimeSecond (s) TemperatureDegree Celcius (°C) Electric.
Aim: How can we distinguish between a vector and scalar quantity? Do Now: What is the distance from A to B? Describe how a helicopter would know how to.
Vectors. A scalar is a quantity that has magnitude only (no direction) Scalars Examples of Scalar Quantities: Distance Area Volume Time Mass.
Vectors Def. A vector is a quantity that has both magnitude and direction. v is displacement vector from A to B A is the initial point, B is the terminal.
Chapter 1: Matter in Motion Motion= a change in position over time Reference point= an object that stays in place and shows us that something is moving.
KD1 Vectors. Scalar vs. Vector Scalar-Quantity having magnitude only (no direction) Ex: Temp., mass, time, speed Vector-Quantity having magnitude AND.
Vectors Physics Book Sections Two Types of Quantities SCALAR Number with Units (MAGNITUDE or size) Quantities such as time, mass, temperature.
How Can We Describe Motion of an Object?. Scalar vs Vector Quantities Scalar – described by a magnitude (number value) alone –Example: 5m, 13 miles,
THIS MINI-LESSON WILL COVER: What is the difference between scalars and vector quantities? What is the difference between distance and displacement ?
What is motion? Motion is when an object changes its position. Motion can be represented mathematically through calculations of speed, velocity, and acceleration.
If an object is traveling north at 30 m/s and east at 13 m/s, what is the objects speed? RankResponses
Physics 101: Lecture 4, Pg 1 Lecture 4: PHY101 Chapter 1 : Scalars and Vectors (1.5) Chapter 2: Distance and Displacement, Speed and Velocity (2.1,2.2)
3 Vectors in Physics 3-1 Scalars versus Vectors Scalar: a number with unit volume, time, temperature, distance … Vector: a mathematical quantity with both.
Scalar and vector quantities 1 Starter Put a cross in the centre of your graph paper (landscape)and draw the following movement: (1 pace = 1 cm) From.
Ch 3 – Two-Dimensional Motion and Vectors. Scalars vs. Vectors ► Scalar – a measurement that has a magnitude (value or number) only Ex: # of students,
Vectors A vector is basically an arrow that represents the magnitude and direction of a measurement. The length of the vector represents its magnitude.
MOTION Motion: Change in position over time and is described by speed, velocity and acceleration.
Vectors in a Plane Lesson Definitions Vector: determined by direction and magnitude Polar representation: nonnegative magnitude r and direction.
Speed Velocity and Acceleration. What is the difference between speed and velocity? Speed is a measure of distance over time while velocity is a measure.
Ch 3 Vectors. Vector vs. Scalar State whether each of the following quantities is a vector or a scalar: Position AccelerationVelocity Speed Displacement.
Vectors & Scalars Chapter Notes. Vectors vs. Scalars A quantity that requires both magnitude (a numerical value) and direction is a vector Displacement,
Scalars and Vectors (a)define scalar and vector quantities and give examples. (b) draw and use a vector triangle to determine the resultant of two vectors.
Vectors An Introduction with Components September 19, 2013.
General Physics. Definition of Physics Study of Energy and matter.
Scalars & Vectors. Scalars: Measurements that have no direction The quantity is called magnitude Ex: Distance: d, time: t, mass: m Vectors: Measurements.
Vectors: Displacement and Velocity. Vectors Examples of vectors: displacement velocity acceleration.
Warm Up Isolate “q 2 ” from. Scalars Scalars are measurements Normal numbers Magnitude is a synonym Examples: 55 miles per hour 100 kg.
Distance vs. Displacement. Fifty Meters To The Outhouse? Written By Willi Makit Illustrated by Betty Wont.
Vectors and Scalars Chapter 8. What is a Vector Quantity? A quantity that has both Magnitude and a Direction in space is called a Vector Quantity.
Physics VECTORS AND PROJECTILE MOTION. VECTORS Vectors have magnitude and direction. Vectors are represented in diagrams as arrows. Vectors are represented.
Physics Section 3.2 Resolve vectors into their components When a person walks up the side of a pyramid, the motion is in both the horizontal and vertical.
Kinematics – the study of the motion of objects without consideration to mass or the forces acting upon objects.
Vectors & Scalars Vectors are measurements which have both magnitude (size) and a directional component. Scalars are measurements which have only magnitude.
Motion Notes. Key Terms 1)Motion: 2)Reference point: The state in which one object’s distance from another is changing. A place or object used for comparison.
8.1 The Language of Motion Some common words used to describe motion include: Some common words used to describe motion include: –Distance –Time –Speed.
Vectors vs. Scalars Pop Quiz: Which of these do you think are vector quantities? Mass, Temperature, Distance, Displacement, Speed, Velocity, Acceleration,
Vector Basics (click here) Vector Basics You can view this applet if you have Geometers Sketchpad. Source: Mathforum.org Check your learning….. What are.
Vectors and Scalars. Adding Vectors A B A+B A B Find B-A = -A + B A B -A-A B -A-A -A+B-A+B B-A =B-A A+(B-A)=B.
Paths in One and Two Dimensions Displacement and Distance.
All quantities in Physics can be categorized as either a scalar or a vector quantity. A scalar quantity has magnitude (amount) only without direction.
Insanely Super Important Kinematics Terms. Kinematics The study of the motion of objects- does not deal with the forces that caused the motion.
Priya Rajkumar and Christina Ramrup. DEFINE Magnitude Only Positive [Scalar] Magnitude Direction Positive or Negative Denoted by an arrow [Vector]
Year 10 Pathway C Mr. D. Patterson 1. Describe the concepts of distance, displacement, speed and velocity Use the formula v=s/t to calculate the unknown.
What is speed? Speed: how fast something is moving or how much distance is covered in a certain amount of time. We will discuss two types of speed: Instantaneous.
Scalars and Vectors. Definition Scalar – a quantity that has a magnitude only, no direction. * YES, scalars can have units. ** What scalars have we learned.
PHYSICS Vectors and Scalars. Useful Vector Math Trigonometry –sine: sin = opp/hyp –cosine: cos = adj/hyp –tangent: tan = opp/adj SOHCAHTOA.
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