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Physical Science Review 1 st Trimester. Target: I will be prepared for the end of Trimester Test. You Need: All Study Cards, Science Notebook. Measurement. 1) Which has more mass? 1 kg or 1 g 12 mg or 1 g 2) Which has more volume? 1,000 mL or 4 L
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Physical Science Review1st Trimester Target: I will be prepared for the end of Trimester Test. You Need: All Study Cards, Science Notebook.
Measurement 1) Which has more mass? 1 kg or 1 g 12 mg or 1 g 2) Which has more volume? 1,000 mL or 4 L 50 L or 100 mL 3) Which has more length? 100 cm or 1 m 15 km or 15 m
Answers 1) Which has more mass? 1 kg or 1 g <1kg> 12 mg or 1 g <1g> 2) Which has more volume? 1,000 mL or 4 L <4L> 50 L or 100 mL <50L> 3) Which has more length? 100 cm or 1 m <same> 15 km or 15 m <15Km>
SI Unit Conversion • 20 m=_______________mm • 3Km=_______________m • 400ml=______________L • 55g=________________Kg
Answers 1) 20 m= 20,000 mm 2) 3Km= 3000 m 3) 400ml= .4 L 4) 55g= .055 Kg
Journal Question • 05 Dec 2012 • Take a half-sheet of paper from the front bench and answer today’s journal question. • Describe, using your science vocabulary, something you learned about designing roller coasters. Each vocabulary word that you correctly use in your paragraph is worth one point.
Speed Directions: Calculate Speed for the following: Distance Time = Speed Meters/Seconds 1) 50 kilometers in 2 hours 2) A fox ran 200 meters in 25 seconds while chasing after a rabbit. How fast was the fox running?
Answers 1.) 25 kmph (kilometers per hour) 2.) 8 mps (meters per second)
Reference Point • If you were standing at the bus stop, name some reference points you could use to know that the bus is moving.
Describe the motion of the squirrel at points A, B, and C. C B A
Answer • At point A, the squirrel is moving slower than point C. • At point B, the squirrel has stopped. • At point C, the squirrel is moving the fastest.
Describe the motion between points A and B, B and C , C and D.
Answers • Between points A and B the object is accelerating (speeding up). • Between points B and C, the object is moving at a steady speed. • Between points C and D, the object is slowing down.
Forces B A What will happen if the forces between person A and B remain balanced? What will happen if one person exerts more force than the other? How do friction and gravity effect the people tugging?
Answers • 1) The forces are balanced on the rope. There will be no change in motion. • 2) The rope will move in the direction of the person exerting more force. • 3) Lots of answer to this question….discuss with a partner and be prepared to share.
Mass vs. Weight • You are the driver of The Magic School Bus. You are going to take our class on a trip. We need to bring our lunches along with us. • 1) What will happen to the mass of our lunches if we take them Jupiter? • 2) What will happen to the weight of our lunches when we are in space?
Answers • 1) Nothing! The mass of our lunches will stay the same. • 2) Our lunches will be weightless in space, but the mass will remain the same.
Study Cards SI System Force Meter Mass Liter Gravity Gram Friction Velocity Weight Acceleration Inertia Speed Reference Point Motion