Physics and information Technology

44 important questions on Physics and information Technology

The _____ is the primary unit that makes up all physical matter. It behaves in very distinct and predictable ways.

Atom

_______ is a mathematical quantity that describes the amount and weight of matter (called the mass ) and the velocity of the mass.

Momentum

In physics, ______ is the study of objects and motion

Mechanics
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The negative or lowest point on a wave is a _________.

trough

_________, The direction of the flow, changes back and forth within the circuit. The interval between directional changes is called a cycle.

Alternating current (AC)

The force or power that pushes or drives electrons through the conductive material is called?

Voltage

When the rays are focused in a single area, the area is called the ?

Focal point

_____ is caused by the natural vibrations of the molecules that make up a substance.

Heat conduction

______ is a medical device that uses the _____ effect and ultrasonic waves to measure and record blood flow as well as tissue density and shape.

Doppler ultrasound, Doppler

The _____ state of a substance occurs when the energy applied to it is greater than the energy bonds that hold the molecules together.

Gaseous

When an object travels in a circle, the distance of its path is called _____?

Circumference

_____ is the number of waves that pass a point in one second.

Frequency

The ______ is the point of greatest disturbance or height of an individual wave. This is measured in meter from top of the crest to the point.

amplitude

Many devices used in surgery derive their energy from ______.

electromagnetic radiation

When energy is applied to a spring to compress it, the spring travels a distance, returns to its original position (neutral), and then move in the opposite direction. This is called _______.

Oscillation

______ is a description of how fast the object travels from one point to another.

Speed

A ______ is a substance in which the molecules are tightly bound in rigid formation.

solid

______ is the complex study of matter, time, energy, force, and space

Physics

A ______ converts mechanical energy into electricity.

electric generator

An orthopedic drill uses circular motion to cut a hole in bone. This is an example of what type of energy?

Kinetic energy

A _____ is much smaller than a proton or neutron. Its weight is almost negligible compared with the nuclear particles.

electron

These programs are designed to help the user learn subjects such as math, language, and science.

interactive educational programs

In computer technology, the _______ is the paper form of data.

hard copy

A ______ or icon is activated by setting the cursor on the _____ or text and pressing one of the mouse buttons (right or left)

command, icon

The _____ is a vast computer network; the _____ is part of it.

Internet, World Wide Web

This type of program allows the user to enter complex data involving items, list, and numerical information.

database

The ______ is located at the top of a window.

Toolbar

What is a substance with low or no conductivity?

Insulator

What is the electrical force in a circuit, measured as the amount of force that passes a given point over a stated period.

Voltage

The relative ability of a substance to transmit free electrons or electricity

Conductivity

A type of electrical current in which electricity changes direction to complete its circuit.

Alternating current (AC)

In electricity, the measurement of a substance's ability to inhibit the flow of electricity is?

Resistance

In electromagnetic wave energy, the height of a wave is?

Amplitude

The behavior of a wave when it reaches a nonabsorbent material and reverses its direction

Reflection

The quality of sound related to the frequency of the sound waves.

Harmonics

Data that has been reproduced in the form of a CD, DVD, or paper printout

Hard Copy

The primary circuits that run the computer.

Mother Board

Alphanumeric device for inputting data to the computer.

Keyboard

A type of serial port for connecting peripheral devices to a computer system.

USB port

The computer memory (internal) and electronic components that enable programming and output.

Central processing unit

The steering component that provides a visual cue for inputting data on the monitor.

Mouse

An electronic device that makes the transmission to or from a computer via a communication line.

Modem

The computer's screen where data is viewed by the user.

Monitor

Also called RAM, this connects with the main circuits to perform all the task to operate the computer.

Memory

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