Exploring Matter: Physics Vocabulary and Changes in Matter

2. Vocabulary 10 The amount of matter that is in an object. It is usually measured in grams. • solid • mass • matter • weight

3. Vocabulary 10 Answer b. mass

4. Vocabulary 20 The process in which energy is passed directly from one object to another. One example is boiling water in a pot on the stove. a. convection b. Thermal energy c. conduction d. radiation

5. Vocabulary 20 Answer c. conduction

6. Vocabulary 30 This is a contact force that occurs when two things are rub against each other. It works against motion. • Gravity • Magnetism • Collision • friction

7. Vocabulary 30 Answer d. friction

8. Vocabulary 40 This happens when light passes through one substance into another and bends. • insulator • refraction • reflection • release

9. Vocabulary 40 Answer b. refraction

10. Vocabulary 50 Sound waves need this in order to vibrate and transmitted. • force • string • medium • energy

11. Vocabulary 50 Answer c. medium

12. What’s the ‘matter’? 10 The states of matter are Ohio, Indiana, and Illinois. • Cups, pints, quarts • Solid, liquid, gas • Water, ice, vapor

13. What’s the matter? 10 Answer d. Solid, liquid, gas

14. What’s the matter?20 Magnetism is a property of matter. Which of the following items is NOT magnetic? • Steel toy car • Nickel chain • Aluminum scissors

15. What’s the matter?20 Answer c. Aluminum scissors

16. What’s the matter?30 This piece of matter has no fixed shape and no fixed volume. The particles move rapidly and spread out in all directions. What am I? • liquid • gas • solid

17. What’s the matter?30 Answer b. gas

18. What’s the matter? 40 A manufacturer of baseball bats is looking for a new source of wood for bats. Which of the following properties is most important in selecting the right wood? • Color • Texture • Hardness • mass

19. What’s the matter? 40 Answer c. hardness

20. What’s the matter? 50 Jane’s science homework asks why air is matter. What should she answer? • Air is invisible. • Air takes up space and has mass. • Air is needed for people to breathe. • Air takes the shape of its container.

21. What’s the matter? 50 Answer b. Air takes up space and has mass.

22. Always changing 10 This is reversible. • Chemical change • Physical change • matter • mass

23. Always changing 10 Answer b. Physical change

24. Always changing 20 Matter combines with another to become something completely different. • Chemical change • Physical change • mass • water

25. Always changing 20 Answer a. Chemical change

26. Always changing 30 Air is released from a bicycle tire. What physical change does the tire go through? • It gets hotter. • It changes shape. • It loses its color. • It takes up more space.

27. Always changing 30 Answer b. It changes shape.

28. Always changing 40 Katie was in her backyard, drinking a glass of ice water on a sunny day. She placed her glass on the backyard table and went inside. When she returned, the ice in the glass had melted. What type of change took place? • refraction • photosynthesis • A reversible physical change • A reversible chemical change

29. Always changing 40 Answer c. A reversible physical change

30. Always changing 50 Shawn’s car was in an accident. The driver door was damaged. That night it rained. When Shawn came outside, he noticed some rust on the door. What change happened to the car door? • Physical change – His brother painted the door a rusty orange color. • Chemical Change – The car caught on fire overnight and burned the door. • Chemical Change – The iron on the car door reacted with the oxygen in the air and the water.

31. Always changing 50 Answer c. Chemical Change – The iron on the car door reacted with the oxygen in the air and the water.

32. Force and Motion 10 This is when an object changes location. • motion • friction • gravity • magnetism

33. Force and Motion 10 Answer a. motion

34. Force and Motion 20 These non-contact forces causes objects to move without touching them. • Collision and gravity • Collision and friction • Gravity and magnetism • Friction and magnetism

35. Force and Motion 20 Answer c. Gravity and magnetism

36. Force and Motion 30 Gravity is responsible for an object’s weight. Which object is pulled to Earth by a greater gravitational force? • paperclip • Wooden table • Student’s desk • pencil

37. Force and Motion 30 Answer b. Wooden table

38. Force and Motion 40 Two magnets are attracted to one another and are pulled together. Which of the following is true? • Magnets always pull together. • Both north poles are near each other. • Both south poles are near each other. • One north pole and one south pole are near each other.

39. Force and Motion 40 Answer d. One north pole and one south pole are near each other.

40. Force and Motion 50 Mr. Burney mops the floors in the school each afternoon. When he finishes mopping, he always puts up a sign stating, “Warning: Floors slippery When Wet.” Which force is reduced when the floor is wet? • heat • friction • collision • gravity

41. Force and Motion 50 Answer b. friction

42. Energy 10 Heat energy • Electricity • Sound energy • Thermal energy • Light energy

43. Energy 10 Answer c. Thermal energy

44. Energy 20 What does electricity traveling through a wire, battery, and light bulb illustrate? • A closed circuit • An open circuit • reflection • Heat conduction

45. Energy 20 Answer a. A closed circuit

46. Energy 30 Jared lives near an airport. Whenever a jet flies over his house, the windows of his house shake. Why does this happen? • Sound waves can be reflected. • Sound waves are vibrations. • Light energy travels faster than sound waves. • Electricity can create magnetism.

47. Energy 30 Answer b. Sound waves are vibrations.

48. Energy 40 A pot of water has a temperature of 25 C. It is placed on a hot stove having a temperature of 120 C while the temperature of the room is 20 C. Which best describes the transfer of thermal energy? • Stove - pot - air • Air – stove - pot • Stove – air - pot • Pot – air - stove

49. Energy 40 Answer a. Stove – pot - air

50. Energy 50 A bicycle’s reflector helps people to see the bicycle while it is moving at night. How does a reflector work? • It refracts light rays. • It bounces light back. • It absorbs light shined on it. • It makes light with electricity.