1. Carbon has an atomic number of 6. How many neutrons does C-14 have?8 14 20

2. Carbon has an atomic number of 6. How many protons does C-14 have?8 14 20

3. Carbon has an atomic number of 6. What is the mass number of C-14?8 14 20

4. Which layer is the least dense?
Green
Pale blue
Dark blue
Clear

5. When dry ice (solid CO2) sublimates into gas, this is an example of?
Chemical property
Chemical change
Physical property
Physical change

6. What state of matter has: indefinite shape, definite volume and loosely arranged particles that have motion?
plasma
gas
liquid
solid

7. Ne is a noble gas and is found in group 18
Ne is a noble gas and is found in group 18. How many valence electrons does it have? 2 8 9 18

8. Atoms with different numbers of electrons than protons are called?
isotopes
ions
neutral
radioactive

9. Atoms of the same element with different numbers of neutrons are called?
isotopes
ions
neutral
radioactive

10. How many atoms are in 2C6H12O624 48

11. Milk is an example of a(n)
solution
suspension
colloid
compound

12. The center of an atom is The electron cloud The protons The neutrons
The nucleus

13. Bases do all of the following EXCEPT
Turn red litmus blue
Taste sour
Have a pH greater than 7
Are slippery

14. Which temperature is lower?
0 F
0 K
-273 F

15. Which depends on the number of particles present?
Temperature
Thermal energy
Chemical properties
Kinetic energy

16. ½ mv2 is the formula for? Potential energy Thermal energy
Kinetic energy
Mechanical energy

17. A skier has the most potential energy?
At the top of the hill
In the middle of the hill
At the bottom of the hill
It depends on the weather

18. What does friction do in terms of energy?
Friction converts potential energy to thermal energy
Friction converts kinetic energy to thermal energy
Friction converts thermal energy into potential energy
Friction destroys energy and creates mass

19. Magnetic fields are created by an atom’s
nucleus
protons
neutrons
electrons

20. The charges on the parts of an atom are
Protons +, neutrons -, electrons no charge
Protons no charge, neutrons -, electrons +
Protons +, neutrons no charge, electrons –
Protons -, neutrons +, electrons no charge

21. The smaller the resistance the
Smaller the voltage
Larger the voltage
Smaller the current
Larger the current

22. How much energy does a 100 W light bulb use in 4 hours
400 Wh
25 Wh

23. If a lightbulb has 50 Ohms of resistance is hooked up to a 10V battery what is the current in the wire?
1/5 Amps
5 Amps
50 Amps
500 Amps

24. If one bulb goes out and they all go out the circuit is
Series
Parallel
Complex
Broken

25. If the current has more than one path to travel through, what type of circuit is it?
Series
Parallel
Complex
Broken

26. By moving a coil of wire past a magnet you can create?
Magnetic Field
Electric current
Electromagnets
Solenoids

27. The distance from crest to crest is called the __ of a wave.
Height
Amplitude
Frequency
Wavelength

28. The louder the sound the larger the ___ of the sound wave.
Height
Amplitude
Frequency
Wavelength

29. Due to ____, as you move towards a sound, the ____ will change.
Doppler effect, pitch
Echolocation, amplitude
Doppler effect, amplitude
Echolocation, pitch

30. This picture represents a
Convex lens
Convex mirror
Concave lens
Concave mirror

31. This picture represents a
Convex lens
Convex mirror
Concave lens
Concave mirror

32. This picture represents a
Convex lens
Convex mirror
Concave lens
Concave mirror

33. The top of a wave is called the
Amplitude
Crest
Frequency
Trough
Wavelength

34. Frequency is measured in ____ and Volume is measured in ____
dB, Hz
Hz, dB
Hz, m
M, dB

35. Electromagnetic waves __ a medium and mechanical wave __ a medium
Need, Need
Need, do NOT need
Do NOT need, Need
Do NOT need, Do NOT need

36. Find the work done by push on a box with 60 N over 6 m.
10 J
66 J
54 J
360 J

37. Where was the object traveling the fastest?
Between 0 and 2 s
Between 2 and 3 s
Between 5 and 6 s
Between 6 and 7 s

38. What does the slop of this line represent?
A positive velocity
A positive acceleration
A negative velocity
A negative acceleration