3.012) ____ metal is an example of a(n) ____.
a. conductor
b. insulator
3.013) ____ water is an example of a(n) ____.
a. insulator
b. conductor
3.014) ____ people are an example of ____.
a. conductors
b. insulators
3.015) ____ rubber is an example of a(n) ____.
a. conductor
b. insulator
3.016) ____ plastic is an example of a(n) ____.
a. conductor
b. insulator
3.017) ____ what does a superconductor do?
a. blocks or stops the flow of electricity
b. conducts electricity with little resistance
c. conducts electricity with no resistance
3.018) ____ how are superconductors used in everyday life?
a. to help mri machines create detailed images
b. to keep astronauts safe on space missions
c. to make light bulbs brighter
3.019) ____ what is an example of how insulators are used in everyday life?
a. to prevent electric shock when using appliances
b. to regulate the heartbeat of individuals
c. to help computers carry electrical signals

Question

Accepted Answer

### 3.012)
# Brief Explanations:
Metals are good conductors of electricity as they have free electrons that can move easily to conduct electric current. Insulators do not conduct electricity well. So metal is a conductor.
# Answer:
A. conductor

### 3.013)
# Brief Explanations:
Pure water is a poor conductor, but in everyday context (like tap water with impurities), water can conduct electricity. However, the question likely considers water (with ions/impurities) as a conductor, while insulators like rubber/plastic don't conduct. So water is a conductor here.
# Answer:
B. conductor

### 3.014)
# Brief Explanations:
Human bodies contain water and electrolytes (ions), which allow electric current to pass. So people are conductors (not insulators, which block current).
# Answer:
A. conductors

### 3.015)
# Brief Explanations:
Rubber is a typical insulator, used to prevent electric current from flowing (e.g., in wires' insulation). Conductors allow current, but rubber does not.
# Answer:
B. insulator

### 3.016)
# Brief Explanations:
Plastic is an insulator, as it does not allow electric current to pass easily. It's used in electrical applications to insulate, unlike conductors.
# Answer:
B. insulator

### 3.017)
# Brief Explanations:
A superconductor is a material that conducts electricity with zero electrical resistance (at very low temperatures, typically). Option A is for insulators, B is for normal conductors (with little resistance), C is for superconductors (no resistance).
# Answer:
C. conducts electricity with no resistance

### 3.018)
# Brief Explanations:
Superconductors are used in MRI machines (to create strong magnetic fields with no energy loss). Option B is unrelated (astronaut safety), C is incorrect (light bulbs use filaments, not superconductors). So A is correct.
# Answer:
A. to help MRI machines create detailed images

### 3.019)
# Brief Explanations:
Insulators prevent electric shock by blocking current (e.g., appliance casings with plastic/insulator materials). Option B is for medical devices (like pacemakers), C is for conductors (to carry signals). So A is correct.
# Answer:
A. to prevent electric shock when using appliances

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QUESTION IMAGE

Question

Explanation:

3.012)

Answer:

3.013)