“War of the Worlds” Broadcast (1938) Exam next Wednesday

Conversions Florence Griffith-Joyner holds the women’s 100.m world record, finishing in 10.49 seconds. What was her speed in miles per hour? (1 mile = 5280 ft) What do I know? 100.m = 10.49 s, 60s = 1 min, 60 min = 1hr 1 cm = 1x10-2 m, 1 in = 2.54 cm, 12 in = 1 ft, 1 mile = 5280 ft

What is my mass in lbs. if this morning I weighed 103,873 g. (1 kg = 2 What is my mass in lbs. if this morning I weighed 103,873 g? (1 kg = 2.20 lb.) What is given (including units)? 103,873 g 1 kg = 2.20 lb. What are you asked for (including units)? mass in lbs. What other information do you know? 1x103 g = 1 kg Where do you start? What is your game plan? 103,873 g  kg  lb  kg

What is my mass in lbs. if this morning I weighed 103,873 g. (1 kg = 2 What is my mass in lbs. if this morning I weighed 103,873 g? (1 kg = 2.20 lb.) 103873 g  kg  lb

Gold is amazing stuff!! A 1.50 cm3 piece of pure gold can be made into a single wire that stretches 82.21 km in length (roughly the distance from here to Stockton). How long would that wire be in nanometers (nm) What is given (including units)? 1.50 cm3 82.21 km What are you asked for (including units)? length in nm What other information do you know? 1x103 m = 1 km 1x10-9m = 1 nm 1x10-2m = 1 cm Where do you start? What is your game plan? 82.21 km  m  nm  m

Gold is amazing stuff!! A 1.50 cm3 piece of pure gold can be made into a single wire that stretches 82.21 km in length (roughly the distance from here to Stockton). How long would that wire be in nanometers (nm) 82.21 km  m  nm

What is given (including units)? The speed of light is 2.998x1010 cm per second. What is the speed of light in miles per hour. (1 mile = 5280 ft, 2.54 cm per inch) What is given (including units)? 1 mile = 5280 ft What are you asked for (including units)? speed in What other information do you know? 2.54 cm = 1 in 1 ft = 12 in 1 mile = 5280 ft 1hr = 60 min 60 s = 1 min

Where do you start? What is your game plan?  in  ft  mi  in The speed of light is 2.998x1010 cm per second. What is the speed of light in miles per hour. (1 mile = 5280 ft, 2.54 cm per inch) Where do you start? What is your game plan?  in  ft  mi  in  in  ft  min  min  hr

What is given (including units)? It takes roughly 8.317 minutes for the light from the Sun to reach the Earth. If light travels at 2.9979x1010 cm per second, what is the distance in km from the Sun to the Earth? What is given (including units)? 8.317 min 2.9979x1010 cm/s What are you asked for (including units)? distance in km What other information do you know? 60 s = 1 min 1x10-2 m = 1 cm 1x103 m = 1 km Where do you start? What is your game plan? 8.317 min  s  cm  m  s  cm  m  km  s  s  cm

It takes roughly 8.317 minutes for the light from the Sun to reach the Earth. If light travels at 2.9979x1010 cm per second, what is the distance in km from the Sun to the Earth? 8.317 min  s  cm  m  km