Download this is review for your chemistry final!

Chemistry Final Review
THIS IS REVIEW FOR YOUR CHEMISTRY FINAL!
THIS IS REVIEW FOR YOUR CHEMISTRY FINAL!
THIS IS REVIEW FOR YOUR CHEMISTRY FINAL!
19. Approximately how many elements are in the periodic?
A. Between 75 and 100
B. Between 100 and 125
C. Between 125 and 150
D. More than 150
20. An atom of gold with 79 protons, 79 electrons, and 118 neutrons
would have an atomic mass of about
A. 39
B. 158
C. 197
D. 276
21. Most of the elements in the periodic table are
A. metals
B. metalloids
C. gases
D. nonmetals
22. The horizontal row on the periodic table is called a(n)
A. group
B. family
C. period
D. atomic number
THIS IS REVIEW FOR YOUR CHEMISTRY FINAL!
23. The vertical column of elements on the periodic table is called a(n)
A. period.
B. semiconductor.
C. atomic mass.
D. group.
24. Which of the following best describes the properties of metals?
A. hard, brittle, and nonconductive
B. liquid, dark, and conductive
C. shiny, malleable, and conductive
D. soft, oily, and very reactive
25. What is the purpose of the zigzag line on the right side of the periodic table?
A. It divides the metals and nonmetals and shows where the metalloids are.
B. It indicates a group of elements that have the same chemical properties.
C. It connects the elements in the table that have the same atomic number.
D. It marks the border between the alkali metals and the transition metals.
THIS IS REVIEW FOR YOUR CHEMISTRY FINAL!
26. What is the smallest particle into which an element can be divided and still be the
same substance?
A. electron
B. proton
C. neutron
D. atom
27. A(n) _____________ is a positively charged particle in an atom’s nucleus.
A. electron
B. neutron
C. plasma
D. proton
Identify the substance in each box pictured below. (28-30).
A. Element
28.
B. Compound
C. Mixture of elements
D. Mixture of compounds
E. Mixture of elements and compounds
29.
30.
Physics Final Review
THIS IS REVIEW FOR YOUR PHYSICS FINAL!
1. number of waves produced in a given amount of time
2. speed at which a wave travels through a medium
3. maximum distance particles of a wave’s medium vibrate from their rest
position
4. distance from any point on a wave to an identical point on the next wave
5. causes sunburn
6. used to treat cancer
7. makes whatever it strikes feel warmer
8. used by cellular phones
9. used to broadcast television signals
10. used to see inside containers without opening them
A. amplitude
B. wavelength
C. wave speed
D. frequency
E. wave
A. gamma ray
B. infrared wave
C. visible light
D. radio wave
E. microwave
AB. ultraviolet light
BC. X ray
11. Mary is sitting outside while an ambulance drives by. The pitch seems to change as the ambulance drives
further away. This is an example of..
A. The Doppler Effect
C. Standing Wave
B. Interference
D. Resonance
12. Which of these waves do NOT require a medium?
A. ocean waves
C. sound waves
B. seismic waves
D. radio waves
THIS IS REVIEW FOR YOUR PHYSICS FINAL!
13. A compass needle responds to a magnetic field, because
the compass needle is a
A. transformer.
B. generator.
C. motor.
D. magnet.
14. A circuit contains four light bulbs. One bulb goes out but the other three stay lit. This must be a(n) _____
circuit.
A. open
B. series
C. parallel
D. resistant
15. Which of the following are two factors that determine speed?
A. acceleration and time
C. distance and time
B. velocity and time
D. motion and time
16. Which of the following is an example of velocity?
A. A car moving at 55 m/h.
B. A motorcycle traveling at 50 m/h east.
C. A leopard running at 100 km/h.
D. An airplane flying south.
17. You are riding fast on a skateboard when your wheel suddenly gets stuck in a crack on the sidewalk. Why
does your body go flying forward?
A. there is a net force pushing you off your skateboard
C. someone pushed you
B. your inertia keeps you moving forward
D. friction
18. Which of the following shows a balanced force?
A. elevator going down at a constant speed
B. rocket lifting off the ground
C. falling ball
D. student sliding to a stop on a slippery floor
THIS IS REVIEW FOR YOUR PHYSICS FINAL!
19. Which of the following is an unbalanced force?
A. A person walking
C. An airplane flying at constant altitude and velocity
B. A car driving at a constant velocity
D. A person sitting still
20. In which of the following activities is friction helpful?
A. car engine parts wearing out
C. car tires moving a car forward
B. soil erosion
D. holes in your socks
21. In which of the following activities is friction harmful?
A. brakes stopping a car
B. eraser erasing
C. person walking
D. car engine parts wearing out
22. Which is a common unbalanced force acting on objects in motion?
A. Inertia
B. Acceleration
C. friction
D. speed
23. How does a simple machine decrease the required input force?
A. changing direction of input force
B. increasing distance through which output force is exerted
C. increasing distance input force is exerted
D. decreasing amount of work required
24. A ramp is an example of a simple machine that is called a(n)
A. inclined plane
B. wedge
C. lever
D. pulley
25. Work is measured in
A. meters
D. newtons
B. pounds
C. joules
THIS IS REVIEW FOR YOUR PHYSICS FINAL!
26. Which of these is an example of work being done on an object?
A. holding a heavy piece of wood at a construction site
B. trying to push a car that doesn't move out of a deep snow
C. pushing a child on a swing
D. holding a door shut on a windy day, so it doesn't blow open
27. In a static discharge, which particles move from one object to another
A. electrons
B. protons
C. neutrons
D. atoms
28. Circuits need three basic parts, an energy source, wires and what else?
A. Charge
B. Force
C. Load
D. Energy
29. A device that opens and closes a circuit is called a(n)
A. conductor B. electric current C. switch
D. volt
30. A load is the part of a circuit that transfers electrical energy to another form of energy. Which
part of the circuit is a load?
A. the wire
B. the battery
C. the switch
D. the light bulb