Physical Science Final Review

Front

What is Newton's 1st Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Front

What is kinetic energy?

Back

The energy that an object possesses due to its motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.

Front

How do you calculate speed?

Back

Speed is calculated by dividing the distance traveled by the time taken, using the formula: Speed = Distance / Time.

Front

What happens to potential energy as an object is lifted higher?

Back

The potential energy of an object increases as it is lifted higher above the ground.

Front

What occurs to particles in a solid when temperature increases?

Back

Particles in a solid speed up as the temperature increases.

Front

What is Newton's 2nd Law of Motion?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass, expressed as F = ma.

Front

What is the formula for calculating kinetic energy?

Back

KE = 1/2 mv², where KE is kinetic energy, m is mass, and v is velocity.

Front

What is potential energy?

Back

The energy stored in an object due to its position or height, often calculated as PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

What is the relationship between mass and kinetic energy?

Back

Kinetic energy increases with mass; doubling the mass of an object while keeping velocity constant doubles its kinetic energy.

Front

What is the effect of an unbalanced force on an object?

Back

An unbalanced force causes an object to accelerate, change direction, or change shape.