Force Unit Review

Front

What is the definition of force in physics?

Back

Force is a push or pull that causes an object to move or change its motion.

Front

What are the two types of forces that magnets can exert on each other?

Back

Magnets can either attract or repel each other.

Front

What is gravity?

Back

Gravity is a force that pulls objects toward the center of the Earth.

Front

What happens to an object when a force is applied to it?

Back

When a force is applied to an object, it can cause the object to move, stop, or change direction.

Front

What is the effect of gravity on falling objects?

Back

Gravity causes falling objects to accelerate towards the Earth at a rate of approximately 9.81 m/s².

Front

How does the mass of an object affect the force of gravity acting on it?

Back

The force of gravity acting on an object is directly proportional to its mass; heavier objects experience a greater gravitational force.

Front

What is the relationship between force, mass, and acceleration as described by Newton's second law?

Back

Newton's second law states that force equals mass times acceleration (F = ma).

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What is the role of friction in motion?

Back

Friction is a force that opposes the motion of an object, acting in the opposite direction to the movement.

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces do not cause a change in motion, while unbalanced forces result in a change in motion.