8th Grade Semester 1 Final Review

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other. It pulls objects towards the center of the Earth.

Front

What does Newton's First Law state?

Back

Newton's First Law states that an object at rest stays at rest, and an object in motion stays in motion unless acted upon by an unbalanced force.

Front

What type of energy does a moving skateboard have?

Back

A moving skateboard has kinetic energy, which is the energy of motion.

Front

What are unbalanced forces?

Back

Unbalanced forces are forces that cause a change in an object's motion. They result in acceleration or deceleration.

Front

Where is a roller coaster going the fastest on a track?

Back

A roller coaster is going the fastest at the lowest point of the track, typically at point b.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion.

Front

What is potential energy?

Back

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

Front

What is the relationship between mass and gravity?

Back

The force of gravity increases with the mass of the objects involved. More massive objects exert a stronger gravitational pull.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object. It occurs when two surfaces come into contact.

Front

What is the formula for calculating force?

Back

The formula for calculating force is F = ma, where F is force, m is mass, and a is acceleration.