WorksheetsGEM Unit Test Review
Total questions: 43
Worksheet time: 22mins
Name
Class
Date
1.
1. Which of the following choices best represents force?
a)
a push or a pull always causing motion
b)
a push or a pull always causing acceleration
c)
a push or a pull acting without an object
d)
a push or a pull acting on an object
2.
2. Which of these is true?
a)
Though all matter has mass, small amounts of mass are unaffected by gravity
b)
All matter has mass; all mass is affected by gravity
c)
Only the Earth's gravity affects matter
d)
Only the Earth's and sun's gravity affect matter
3.
3. As the distance between two objects increases, the force of gravity between them
a)
decrease
b)
does not change
c)
increases only slightly
d)
increases greatly
4.
4. The gravitational pull is greater between two objects that
a)
have greater masses
b)
have rougher surfaces
c)
are further apart
d)
are moving at greater speed
5.
5. The law of universal gravitation says that gravitational force is
a)
related to mass and distance
b)
related to weight and distance
c)
related to mass and friction
d)
related to weight and friction
6.
What are the basic building blocks of all matter?
a)
molecules
b)
atoms
c)
cells
d)
particles
7.
7. Which part of the atom has a negative charge?
a)
protons
b)
electrons
c)
neutrons
d)
nucleus
8.
8. What happens when electrons move from one object to another by direct contact?
a)
friction
b)
detection
c)
induction
d)
conduction
9.
9. If a material does not allow charges to move through it easily, what is it called?
a)
electrical insulator
b)
electrical conductor
c)
static electricity
d)
electric discharge
10.
10. What is the loss of static electricity as charges move off an object?
a)
static
b)
electric discharge
c)
friction
d)
induction
11.
11. Circuits need three basic parts, an energy source, wires, and what else?
a)
charge
b)
force
c)
load
d)
energy
12.
12. How many pathways are there for moving charges in a series circuit?
a)
one
b)
two
c)
three
d)
four
13.
13. What method is involved when charges in an uncharged metal object are rearranged without direct contact with a charged object?
a)
friction
b)
induction
c)
convection
d)
conduction
14.
14. Which of the following is positively charged?
a)
proton
b)
neutrons
c)
electrons
d)
atoms
15.
15. A compass needle responds to a magnetic field, because the compass needle is a
a)
transformer
b)
generator
c)
motor
d)
magnet
16.
16. A coil of wire that has a soft iron core and that acts as a magnet when an electric current is in the coil is called a(n)
a)
ferromagnet
b)
electromagnet
c)
permanent magnet
d)
natural magnet
17.
17. All objects accelerate at ________ m/s/s.
a)
9.3
b)
9.8
c)
9.2
d)
100
18.
18. Charging by ______________ happens when electrons are wiped from one object onto another.
a)
Friction
b)
Fraction
c)
Induction
d)
Conduction
19.
19. A material in which charges cannot move easily is known as a _____________.
a)
conductor
b)
insulator
c)
friction
d)
induction
20.
20. These flow through the wire as a current.
a)
protons
b)
electrons
c)
neutrons
d)
all of the above
21.
21. The rate at which charges pass a given point.
a)
electric current
b)
electric field
c)
magnetism
d)
electromagnet
22.
22. The region around a magnet in which magnetic forces exist.
a)
magnetic field
b)
pole
c)
domain
d)
solenoid
23.
23. Which material is considered to be magnetic?
a)
copper
b)
zinc
c)
iron
d)
all of the above
24.
24. If you break a magnet in half you will have….
a)
one piece with two north ends and one piece with two south ends
b)
two east ends
c)
four west ends
d)
two totally separate magnets
25.
25. Any material that attracts iron or materials containing iron.
a)
magnet
b)
electric circuit
c)
electromagnetic spectrum rays
d)
aluminum
26.
26. What are some ways to make an electromagnet stronger?
a)
decrease the wires and battery
b)
increase the size of the wire and use smaller batteries
c)
increase the number of coils and eliminate the battery
d)
increase the number of coils and/or increase the battery size
27.
27. A good conductor would be made from__________________.
a)
copper
b)
wood
c)
rubber
d)
plastic
28.
28. For electricity to flow through a circuit the switch needs to be ________
a)
open
b)
closed
c)
waxed
d)
contain a magnet
29.
29. Using the diagram below, this would be a __________ circuit.
a)
parallel
b)
series
c)
electromagnet
d)
none of the above
30.
30. Using the diagram below, how many loads are in the circuit?
a)
1
b)
2
c)
3
d)
4
31.
31. Using the diagram below, how many batteries are in the circuit?
a)
1
b)
2
c)
3
d)
4
32.
32. Using the diagram below, considering that the lights are in working conditions and the battery is fully charged, would the lights be on or off?
a)
on
b)
off
33.
33. Using the diagram below, what kind of circuit is represented?
a)
series
b)
parallel
c)
electromagnetic
d)
none of the above
34.
34. Using the diagram below, how many switches are in the circuit?
a)
0
b)
1
c)
2
d)
3
35.
35. Tony has a string of Christmas lights that he plans on putting on his house. When Tony plugs the lights in, he notices that when one bulb goes out all the other lights go out as well. What kind or circuit is this?
a)
series
b)
parallel
c)
none of the above
d)
all of the above
36.
36. Houses are usually wired with which type of circuit?
a)
series
b)
parallel
37.
37. You should always use electrical devices while your hands are wet.
a)
True
b)
False
38.
38. Lightning is a form of static electricity.
a)
True
b)
False
39.
40. Some animals can create an electrical shock.
a)
True
b)
False
40.
42. Rubber is a good electrical conductor.
a)
True
b)
False
41.
43. Protons and neutrons are located in the nucleus of an atom.
a)
True
b)
False
42.
44. An open circuit allows for the flow of electricity.
a)
True
b)
False
43.
45. Copper is a good electrical conductor
a)
True
b)
False
100 %
