Download 1 - Paul J. Goodenough

Name: _______________________
Hour: ______
6th grade Science Benchmark and Fall Semester Review
Benchmark is Dec. 12 and 13
Semester Test is Dec. 18 and 19
1. The basic unit of matter is ________________.
2. When a gas changes into a liquid, the process is called ___________________.
3. The ability to cause change is called ___________________.
4. Name 3 examples of electromagnetic waves. ___________________________________________
5. Which type of energy is stored in the nucleus of atoms? ____________________
6. In
many energy conversions, the largest amount of wasted energy often ends up as _____________.
7. When a skier goes down a hill potential energy changes into ________________.
8. How is sound energy different from electromagnetic energy?
A. sound energy can be transferred across empty space
B. sound energy cannot be transferred across empty space
C. sound energy can be transferred only if it has a large mass
D. sound energy cannot be produced by conversions of electrical energy
9. Sally moves a package from the floor to the table. What is true about the energy of the bag?
A. Its potential energy has not changed.
B. Its potential energy has increased.
C. Its potential energy has decreased.
D. It does not have potential energy.
10. What does the law of conservation of energy state?
11. An electrical device that slows the flow of charge in a circuit is called a ________________.
16. A short circuit can occur because current
A. never stays on a closed path
B. always follows the shortest wire
C. follows the path of least resistance
D. follows high-resistance materials
17. In a circuit, a switch
A. connects different parallel paths
B. opens and closes the path of charge
C. turns the conductor on and off
D. follows the path of least resistance
18. Current follows a closed path
A. in every circuit
B. only in short circuits
C. only in grounded circuits
D. when there is no voltage source
19. What do fuses and circuit breakers have in common?
A. melting the circuit wire
B. disconnecting the resistor
Name: _______________________
Hour: ______
6th grade Science Benchmark and Fall Semester Review
Benchmark is Dec. 12 and 13
Semester Test is Dec. 18 and 19
C. grounding the circuit
D. opening the circuit
20. When a bike is at the top of a hill, it has
A. electrical energy
B. light energy
C. kinetic energy
D. potential energy
21. The electric charge that flows from an outlet and through a wire is known as
A. static electricity
B. resistance
C. electric current
D. electric conductor
22. Electric charge is flowing through a copper wire. The wire is
A. an insulator
B. a volt
C. a current
D. a conductor
23. When water freezes,
A. it becomes a completely different substance
B. it becomes two different substances
C. it changes form, becoming ice
D. it vanishes into the air
24. Matter is anything that
A. has mass and takes up space
B. is made of molecules
C. is a solid at room temperature
D. takes the shape of its container
25. All substances are made of
A. energy
B. matter
C. compounds
D. gases
26. A solid is a substance that has
A. a fixed volume and a fixed shape
B. a fixed volume but not a fixed shape
C. a fixed shape but not a fixed volume
D. neither a fixed shape nor a fixed volume
27. A liquid is a substance that has
A. a fixed volume and a fixed shape
B. a fixed volume but not a fixed shape
C. a fixed shape but not a fixed volume
D. neither a fixed shape nor a fixed volume
Name: _______________________
Hour: ______
6th grade Science Benchmark and Fall Semester Review
Benchmark is Dec. 12 and 13
Semester Test is Dec. 18 and 19
28. A gas is a substance that has
A. a fixed volume and a fixed shape
B. a fixed volume but not a fixed shape
C. a fixed shape but not a fixed volume
D. neither a fixed shape nor a fixed volume
30. Electric current produces a magnetic field. What will happen if the current in the wire is turned
off?
A. The number of domains in the magnetic field will decrease.
B. The poles of the magnetic field will reverse.
C. The magnetic field will disappear.
D. The strength of the magnetic field will decrease.
31. A wire moving across magnetic field lines creates
A. a magnetic force
B. an electric current
C. an electric circuit
D. a new magnetic field
32. Coils of wire rotate within a magnetic field to produce current in a device called
A. a generator
B. a motor
C. a transformer
D. an electromagnet
33. Current that regularly reverses direction is called
A. changing current
B. reversible current
C. direct current
D. alternating current
34. Wind and water are both used as types of
A. potential energy.
B. kinetic energy.
C. magnetic energy.
D. electrical energy.
35. What happens if the north pole of a magnet gets broken?
A. It is no longer a magnet.
B. It has two south ends.
C. Its domains become random.
D. It has a new north pole.
36. Two magnets placed end to end won’t stay together because
A. the opposite poles are together.
B. the like poles are together.
C. they are different kinds of magnets.
D. they have different kinds of fields.
Name: _______________________
Hour: ______
6th grade Science Benchmark and Fall Semester Review
Benchmark is Dec. 12 and 13
Semester Test is Dec. 18 and 19
37. What is the primary source of energy for all living things?
A. food
B. oxygen
C. sun
D. carbon dioxide
38. Current that reverses direction is called __________________; current that moves in only one
direction is called ___________________.
A. alternating, indirect
B. alternating, direct
C. direct, alternating
C. indirect, direct
39. Which of the following is an example of a nonrenewable resource?
A. sun
B. water
C. fossil fuels
D. nuclear energy
40. Which type of circuit is used in most homes?
A. series
B. open
C. closed
D. parallel
41. Which of the following is a form of matter?
A. sound
B. light
C. heat
D. smoke
42. Sugar is a
A. solid
B. pure substance
C. liquid
D. gas
43. Which of the following is a physical change, not a chemical change?
A. baking a cake
B. wood burning
C. ice melting
D. wax candle burning
44. Susie has to dry her clothes two times. Mike has to dry his clothes only one time. This means that
Mike
A. dries fewer clothes at a time.
B. loses a higher percentage of energy to unwanted forms.
C. loses a lower percentage of energy to unwanted forms.
D. needs more energy to dry clothes.