8th Science Semester 1

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion. An example is a car driving on the highway.

Front

What is the lowest part of a transverse wave called?

Back

The lowest part of a transverse wave is called the trough.

Front

What does a net force of 0 N indicate?

Back

A net force of 0 N indicates that all forces acting on an object are balanced, resulting in no change in motion.

Front

In which direction does friction act in relation to movement?

Back

Friction acts in the opposite direction of movement.

Front

What does the equation F=ma represent?

Back

The equation F=ma represents Newton's 2nd law of motion, which states that force equals mass times acceleration.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state. For example, a book on a shelf has potential energy.

Front

What is the definition of a crest in a wave?

Back

A crest is the highest point of a transverse wave.

Front

What is the relationship between mass and acceleration in Newton's 2nd law?

Back

In Newton's 2nd law, an increase in mass results in a decrease in acceleration if the force remains constant.

Front

What is the formula for calculating speed?

Back

Speed is calculated using the formula: Speed = Distance / Time.

Front

What is the definition of frequency in waves?

Back

Frequency is the number of waves that pass a point in one second, measured in Hertz (Hz).