Quiz about Va Science Review

Question 1

Which of the following will NOT induce an electromotive force in a loop of wire?

Accepted Answer

None of the above

Answer

Changing the magnetic field

Answer

Changing the area of the loop

Answer

Changing the angle between the loop and the magnetic field

Question 2

What is the correct order of signal flow in your body when a stimulus is detected?

Accepted Answer

Sensory input > Integration > Motor output

Answer

Motor output > Integration > Sensory input

Answer

Integration > Sensory input > Motor output

Answer

Integration > Motor output > Sensory input

Question 3

Which of the following is a function of the nervous system?

Accepted Answer

All of the above

Answer

It controls and coordinates all body functions.

Answer

It monitors internal and external stimuli.

Answer

It plays an important role in the maintenance of homeostasis.

Question 4

Which of the following is a mental activity processed by the nervous system?

Accepted Answer

All of the above

Answer

Consciousness

Answer

Memory

Answer

Thinking

Question 5

It is the primary functional and anatomic unit of the nervous system.

Accepted Answer

Neuron

Answer

Nerve

Answer

Neuroglia

Answer

Glial cells

Question 6

This part of the neuron contains the nucleus and processes neuronal proteins.

Accepted Answer

Cell body

Answer

Nucleus

Answer

Axon

Answer

Dendrites

Question 7

This part of a neuron receives stimuli and conducts it towards the soma.

Accepted Answer

Dendrites

Answer

Axon

Answer

Axon terminal

Answer

Nucleus

Question 8

The efferent processes happens in which part of a neuron?

Accepted Answer

Axon

Answer

Soma

Answer

Dendrites

Answer

Myelin Sheath

Question 9

This type of neuron carry impulses to the spinal cord or to the brain.

Accepted Answer

Sensory neuron

Answer

Motor neuron

Answer

Interneuron

Answer

Glial cells

Question 10

This type of neuron carry impulses from the spinal cord or the brain to the target muscles.

Accepted Answer

Motor neuron

Answer

Sensory neuron

Answer

Interneuron

Answer

Glial cells

Question 11

A neuron to neuron connections made onto the dendrites and cell bodies of other neurons.

Accepted Answer

Synapse

Answer

Neurotransmitter

Answer

Stimuli

Answer

Impulse

Question 12

Individual neurons connect to other neurons to stimulate or inhibit their activity, forming circuits that can process incoming information and carry out a response.

Accepted Answer

True

Answer

False

Question 13

Neuronal circuits can be very simple, and composed of only a few neurons, or they can involve more complex neuronal networks.

Accepted Answer

True

Answer

False

Question 14

Glial cells, supportive cells of the nervous system, are also known as ______.

Accepted Answer

Neuroglia

Answer

Neuroglial

Answer

Neuron-glial

Answer

Neurons

Question 15

These glial cells supply nutrients to neurons and help maintain their ability to transmit impulses.

Accepted Answer

Astrocytes

Answer

Ependymal cells

Answer

Oligodendrocytes

Answer

Microglial cells

Question 16

These glial cells produce the cerebrospinal fluid and bathe the spinal cord and brain.

Accepted Answer

Ependymal cells

Answer

Oligodendrocytes

Answer

Microglial cells

Answer

Astrocytes

Question 17

Neurons receive and transmit impulses to other neurons or to other body organs.

Accepted Answer

True

Answer

False

Question 18

It refers to the physical phenomena arising from the force caused by objects that produce fields that attract or repel other objects.

Accepted Answer

Magnetism

Answer

Electromagnetism

Answer

Electricity

Answer

Electromagnetic Induction

Question 19

These are defined as the regions surrounding a magnet.

Accepted Answer

Magnetic field

Answer

Magnetic field lines

Answer

Induction field

Answer

Electric field

Question 20

Magnetic fields are created by _________.

Accepted Answer

Moving charges

Answer

Stationary charges

Answer

Charged particles

Answer

Electropositive charges

Question 21

Magnetic field lines are oriented in which direction?

Accepted Answer

North to south

Answer

South to north

Answer

Around the north pole

Answer

Around the south pole

Question 22

1) All metals are attracted to magnets.

2) Magnets attract objects made of iron, nickel and cobalt.

Accepted Answer

Statement 1 is false, statement 2 is true.

Answer

Both statements are true.

Answer

Both statements are false.

Answer

Statement 1 is true, statement 2 is false.

Question 23

1) Magnets have two poles, the north pole and the south pole.

2) When a magnet is broken into two, each piece will have both the north and south poles.

Accepted Answer

Both statements are true.

Answer

Both statements are false.

Answer

Statement 1 is true, statement 2 is false.

Answer

Statement 1 is false, statement 2 is true.

Question 24

1) If one wants to have a monopole magnet (a magnet with only one pole), one needs to break a bar magnet right in the middle.

2) Poles always exist in pairs, they cannot be separated.

Accepted Answer

Statement 1 is false, statement 2 is true.

Answer

Both statements are true.

Answer

Both statements are false.

Answer

Statement 1 is true, statement 2 is false.

Question 25

1) Opposite poles of two magnets attract each other.

2) Like poles of two magnets repel each other.

Accepted Answer

Both statements are true.

Answer

Both statements are false.

Answer

Statement 1 is true, statement 2 is false.

Answer

Statement 1 is false, statement 2 is true.

Question 26

This is a process where a magnetic field is created by introducing a current in the conductor.

Accepted Answer

Electromagnetism

Answer

Magnetic induction

Answer

Electromagnetic induction

Answer

Magnetism

Question 27

He discovered the connection between electricity and magnetism.

Accepted Answer

Hanz Christian Oersted

Answer

Michael Faraday

Answer

James Maxwell

Answer

Heinrich Hertz

Question 28

According to the story, during a lesson on electric circuits, a compass was observed to move when the circuit is closed. Who was the professor doing the said lesson?

Accepted Answer

Hanz Christian Oersted

Answer

Michael Faraday

Answer

James Maxwell

Answer

Heinrich Hertz

Question 29

Current-carrying conductors also produce magnetic field. This statement is _______.

Accepted Answer

Always true.

Answer

Sometimes true.

Answer

Always false.

Answer

None of the above.

Question 30

In a current-carrying conductor, the magnetic field is circular in shape. Where is the conductor situated in this field?

Accepted Answer

The middle of the field.

Answer

The north end of the field.

Answer

The south end of the field.

Answer

Cannot be determined, it depends on the field.

Question 31

Which of the following is true about the magnetic field produced by a current-carrying conductor?

Accepted Answer

As the distance from the conductor increases, the strength of the field decreases.

Answer

As the distance from the conductor increases, the strength of the field also increases.

Answer

As the distance from the conductor decreases, the strength of the field also decreases.

Answer

None of the statements is true.

Question 32

Using the right-hand rule, if the current flows in the conductor below as indicated by the red arrow, what is the direction of the magnetic field?

Accepted Answer

The field will come out from the left to right.

Answer

The field will come out from the right to left.

Answer

The field will come out from the top to bottom.

Answer

The field will come out from the bottom to top.

Question 33

1) Magnetic force is defined as the force of interaction between two magnets.

2) Magnetic force is always perpendicular to the magnetic field and the direction of a moving charge.

Accepted Answer

Both statements are true.

Answer

Both statements are false.

Answer

Statement 1 is true, statement 2 is false.

Answer

Statement 1 is false, statement 2 is true.

Question 34

The process of producing an electromotive force across an electrical conductor in a changing magnetic field is called _______.

Accepted Answer

Electromagnetic induction

Answer

Electromotive induction

Answer

Magnetic induction

Answer

Electric induction

Question 35

This is a force that causes electrons to move and therefore form a current.

Accepted Answer

Electromotive force

Answer

Magnetic force

Answer

Electric force

Answer

Electromagnetic force

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