Day 23 10/5/10 TOPIC: Converting an xt Graph to a vt Graph

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Presentation transcript:

Day 23 10/5/10 TOPIC: Converting an xt Graph to a vt Graph OBJECTIVE: I can convert a Position v. Time Graph (xt Graph) to a Velocity v. Time Graph (vt Graph) STARTER: Speed - the rate at which position changes Constant Speed - speed that does not change Instantaneous Speed - speed at a given moment Average Speed - total distance divided by total time Velocity - a quantity that specifies both speed and direction

Agenda

Write 3-4 true statements about the xt graph.

SLOPE of XT gives VELOCITY 3 2 1 t (s) INSTRUCTION Velocity 1

Example 3: Shoulder Partner Practice Convert an xt Graph to a vt Graph X (km) 3 2 1 -1 -2 -3 t (hr) v (km/hr) SHOULDER PARTNER PRACTICE

Example 4: Shoulder Partner Practice Converting an xt Graph to a vt Graph v (m/s) 3 2 1 -1 -2 -3 t (s)

Units Speed Units Velocity Units Some DISTANCE & its UNIT Some TIME & its UNIT Speed Units Speed is a magnitude; Speed includes a value, & units. Velocity Units Velocity is a vector; Velocity includes a value, units, & DIRECTION