Today’s Objective We will be able to calculate the speed and velocity of an object in motion by analyzing given data.

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Presentation transcript:

Today’s Objective We will be able to calculate the speed and velocity of an object in motion by analyzing given data.

SPEED DEFINITION Speed measures how quickly an object moves a distance. Speed is equal to the distance the object travels divided by the time it took the object to travel that distance. Speed is always written as units of distance (like meters) over units of time (like seconds)

SPEED EQUATION Speed = distance ÷ time OR S = D T

SPEED EXAMPLE A car travels 50 miles in 2 hours. What is its average speed? Speed = distance ÷ time Speed = ?_ Distance = 50 miles Time= 2 hours Set up the Equation: Speed = 50 miles (divide) 2 hours Divide and solve: Speed = 25 miles in 1 hour The average speed is 25 miles per hour

GP 1 A car travels 300 miles to the beach and gets there in 6 hours. On average, how fast was the car traveling on the trip?

GP 2 A ball is thrown 30 meters in 10 seconds. How fast was the ball traveling?

VELOCITY DEFINITION Velocity is how fast something moves in a certain DIRECTION. It is calculated the same way as speed, but you need to add the direction that the object is traveling to your answer.

Velocity EQUATION V = D (and add a direction) T

SPEED EXAMPLE A car travels 30 miles in 2 hours going East. What is its velocity?

GP 3 A plane takes off from Boston and travels 3000 miles across the country to San Francisco, California in 6 hours. What is the velocity of the plane?

GP 4 Two boys are running in opposite directions at 4 m/s. Explain your answers Do they have the same speed? Do they have the same velocity?

GP 5 1. Calculate the speed of a dog running through a field if he is covering 200 meters in 10 seconds. a. Do I need to include direction? ________

DFA 2. If a cross country runner covers a distance of 300 meters in 15 seconds what is her speed? a. Do I need to include direction? ________

EXTENSION WORK AT HALF-LEVEL VOICES RAISE YOUR HAND IF YOU HAVE A QUESTION GET A 100%!!!