# Speed Distance Time. Intermediate 1. Unit 2..

## Presentation on theme: "Speed Distance Time. Intermediate 1. Unit 2.."— Presentation transcript:

Speed Distance Time. Intermediate 1. Unit 2.

Getting The Formula Right !
When you pick up a phone you get a: Standard Dialling Tone: Place these initials in a cross. S D T The cross now gives us: These can be written as :

Problem Solving. How fast was a lorry drives 450miles in 5hours and minutes. Is the question time,distance or speed ? Speed calculation. What is the formula for speed? D = 450km What is the distance and the time ? T = 5.5 hours. 30 min= 30/60 hours = 0.5 hours. = 81.8km/hr Now calculate the speed.

(2) How far did a plane go if it travels at 450km/hr for 5hours and 15 minutes ?
Is the question time,distance or speed ? Distance calculation. D = S x T What is the formula for distance ? S = 450km/hr What is the speed and the time ? T = 5.25 hours. 15min = 15/60 hour = 0.25 hours D = 450 x 5.25 Now calculate the distance. D = km

(3) How long will a train take to travel 667.5km at 89km/hr ?
Is the question time,distance or speed ? Time calculation. What is the formula for Time ? D = 667.5km What are the distance and the speed ? S = 89km/hr Now calculate the time. T = 7.5 hours = 7 hours 30 minutes.