Science 8 Semester 1 Exam Review pt 1

Front

What is the unit of speed?

Back

The unit of speed is measured in meters per second (m/s).

Front

What type of energy is stored in an object due to its position?

Back

Potential energy is the energy stored in an object due to its position or state.

Front

What is net force?

Back

Net force is the overall force acting on an object after all the forces are combined.

Front

At which point is potential energy the highest on a roller coaster?

Back

Potential energy is highest at the top of a big hill.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time.

Front

What happens to potential energy as an object falls?

Back

As an object falls, its potential energy decreases while its kinetic energy increases.

Front

What is the relationship between mass and gravitational potential energy?

Back

Gravitational potential energy increases with mass and height.

Front

What is the difference between kinetic and potential energy?

Back

Kinetic energy is energy of motion, while potential energy is stored energy based on position.

Front

How does friction affect motion?

Back

Friction opposes motion, reducing speed and energy.