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Force and Motion

Force and Motion. Assessment FM4, FM6, ED 1, ED8, ED 11. FM6: 1. Friction is . The force that opposes motion (slows or stops motion). Always an unbalanced force. A non-contact force. The resistance of an object to a change in motion. FM6: 2. When an object in a liquid is sinking.

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Force and Motion

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  1. Force and Motion Assessment FM4, FM6, ED 1, ED8, ED 11

  2. FM6:1. Friction is • The force that opposes motion (slows or stops motion). • Always an unbalanced force. • A non-contact force. • The resistance of an object to a change in motion.

  3. FM6:2. When an object in a liquid is sinking • The buoyant force is greater than the gravitational force • Fluid friction is slowing the acceleration of the object • Fluid friction is making it go faster • It is neutrally buoyant

  4. FM43. Callie walked 18m in 12s. She did not walk at a steady speed, so 1.5 m/s was her • Acceleration • Average speed • Direction • Velocity

  5. FM44. Which of these formulas shows the relationship among speed, time, and distance? • S=td • S=d/t • S=t+d • T=sd

  6. FM45. The “Pink Group” dropped their object in water. It took it 5 seconds to drop 10 cm. What was the average speed? • .5 cm/s • 15 cm/s • 150 cm/s • 2 cm/s

  7. FM46. Michael jogged 200m in 25s, then 100m in 15s. He could find his average speed by dividing • 200m by 40s • 300m by 25s • 300m by 40s • 100m by 15s

  8. ED17. The correct format for writing a testable question for an experiment is • Does (IV) affect (DV)? • If (IV), then (DV)? • Does the (DV) effect the (IV)? • What is the effect of (IV) on (DV) IV=Independent Variable DV=Dependent Variable

  9. ED88. Calculate the average of the trials:T1: 10m/s T3: 12m/s T2: 13m/s T4: 9m/s • 10m/s • 11m/s • 13m/s • 44m/s

  10. ED119. What are two factors you will need to measure to find the speed of an object? • Time and direction • Force and momentum • Distance and force • Distance and time

  11. ED1110. What tool would you need in order to measure distance? • Metric ruler • Spring scale • Stopwatch • Calculator

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