TCAP Review 1st semester

Front

What is a digital signal?

Back

A digital signal is discrete and not continuous; it is represented by two values - either on (1) or off (0).

Front

What happens to the amplitude of a wave when energy increases?

Back

The amplitude of a wave increases with increased energy.

Front

What is the formula to calculate speed?

Back

S = d/t, where S is speed, d is distance, and t is time.

Front

In which direction do magnetic fields go?

Back

Magnetic fields go out from the north pole and into the south pole.

Front

What are binary numbers?

Back

Binary numbers are a way to encode signals to or from a computer, using two values - on (1) or off (0).

Front

What is the difference between analog and digital signals?

Back

Analog signals are continuous, while digital signals are discrete.

Front

Define wavelength in the context of waves.

Back

Wavelength is the distance between successive crests of a wave.

Front

What is the relationship between energy and amplitude in waves?

Back

As energy increases, the amplitude of the wave also increases.

Front

What does the term 'discrete' mean in relation to signals?

Back

Discrete means that the signal can only take on specific values, such as on or off.

Front

How do you calculate distance if you know speed and time?

Back

Distance can be calculated using the formula d = S x t.