Science 8 Final Exam Study Guide

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or state. It is greatest when an object is at a height, such as at point W in a gravitational field.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion. It depends on the mass of the object and the speed at which it is moving.

Front

What is the order of objects during a solar eclipse?

Back

The correct order is Sun, Moon, Earth.

Front

What is our galaxy called?

Back

Our galaxy is called The Milky Way.

Front

What is net force?

Back

Net force is the sum of all forces acting on an object. It determines the object's motion.

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses because of its position in a gravitational field, typically related to its height.

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces do not change an object's motion, while unbalanced forces cause an object to accelerate.

Front

What is the formula for kinetic energy?

Back

The formula for kinetic energy (KE) is KE = 1/2 mv², where m is mass and v is velocity.

Front

What happens during a solar eclipse?

Back

During a solar eclipse, the Moon passes between the Earth and the Sun, blocking the Sun's light.

Front

What is the role of the Sun in our solar system?

Back

The Sun is the central star of our solar system, providing light and heat that sustain life on Earth.