3 rd Quarterly Station Review

1. 3rd Quarterly Station Review

2. S T A T I O N 1 S=td/tt S=50/25 S=2 m/min • What is the average speed of this object? • What is occurring at Point 4? • What is happening to the thermal energy? • What is this process called? Boiling Thermal Energy Increases Condensation

3. S T A T I O N 2 • Identify the following pictures as static, sliding, or fluid friction? • 1. 2. 3. • Label the following as contact or noncontact forces. • 4. Dragging your feet across the carpet • 5. A rock falling off a cliff • 6. Pushing a table to the other side. • What is the force that allows the swings to move in a circular motion? Fluid Sliding Static Contact Noncontact- Gravity Contact Centripetal Force

4. S T A T I O N 3 • Which of Newton’s Laws applies to the following scenarios? • A. Rockets are launched into space using jet propulsion where exhaust accelerates out from the rocket and the rocket accelerates in an opposite direction. • B. A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them. • C. A soccer ball accelerates more than a bowling ball when thrown with the same force. • What are three ways an object can accelerate? • 1)________________ ___ 2) ____________________ 3) ___________________ Newton’s 3rd Law Newton’s 1st Law Newton’s 2nd Law Increase Speed Decrease Speed Change Direction

5. Station 4 • Match each example with the correct energy. Record the letter next to the correct number. • _____1. Electric Energy a. Echolocation • _____2.Mechanical Energy b. Light bulb • _____3.Radiant Energy c. Appliances • _____4.Sound Energy d. Heat • _____5.Thermal Energy e. Roller Coaster • _____6.Seismic Energy f. Fusion (Sun) • _____7. Nuclear g. Earthquakes C. E. B. A. D. G F.

6. Station 5 What are the energy transformations involved in a blender? 2. Which law states that energy cannot be created or destroyed? 3. Which building has more GPE? Electrical → Mechanical → Sound Law of Conservation of Energy Sears Tower

7. Station 6: List the flow of thermal energy. • When you touch a metal railing it feels cold. • 2. You feel hot when you accidently touch the cookie tray • 3. Your hands feel cold after holding an ice cold drink. • Identify the correct heat transfer using conduction, convection, or radiation. • 4.5.6. Heat goes from hand to railing. Heat from the tray flows to your hand. Heat from your hands go to the drink. Convection Conduction Radiation

8. Low • 1. You take your jeans out of the dryer, you notice that the button feels hot compared to the jean itself. What does this say about the specific heat of the button? (high or low) • 2. When you go to your car on a hot summer day you notice that the metal buckle is hotter than the cloth of the seatbelt. What does this say about the specific heat of the cloth? (high or low) • 3. Most spoons have a plastic handle to keep your hand from burning. How would you compare the specific heat of the plastic to the metal spoon? (high or low) • Label the following as insulator or conductor. • 4. Aluminum • 5. Grass • 6. Copper • 7. Fur • 8. Lead High Plastic has high specific heat; more energy to heat up. Conductor Insulator Conductor Insulator Conductor STATION 7

9. Solid • 1. In which state of matter do the particles have the greatest attraction? • 2. Which state of matter has no definite shape or volume? • 3. What happens to gases in cold environments? • HINT: Think about tires and balloons in the winter • 4. Think back to the experiment we did with food coloring and hot/cold water? What happened when we dropped the food coloring in cold water? Hot water? Gas Thermal contraction Hot water –spread faster Cold water – spread slower STATION 8