PS 2.1-2.5 Review

Front

What is an electric field?

Back

An electric field is a region around a charged object where other charged objects experience a force. It is represented by electric field lines that indicate the direction and strength of the field.

Front

What is the relationship between two point charges that create an electric field?

Back

If one charge is positive and the other is negative, they attract each other. If both charges are of the same type (both positive or both negative), they repel each other.

Front

What does it mean when forces on an object are balanced?

Back

When forces are balanced, the net force acting on the object is zero, resulting in no change in motion.

Front

What is Newton's first law of motion?

Back

Newton's first law states that an object at rest will stay at rest, and an object in motion will stay in motion at a constant velocity unless acted upon by an unbalanced force.

Front

Give an example of Newton's first law of motion.

Back

A football on a tee remains at rest until it is kicked, demonstrating that it will not move unless acted upon by an external force.

Front

What happens to an object in motion when the forces acting on it are unbalanced?

Back

An object in motion will accelerate in the direction of the net force when the forces acting on it are unbalanced.

Front

What is the definition of work in physics?

Back

Work is done when a force causes an object to move in the direction of the force. It is calculated as Work = Force x Distance.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. It is directly related to the mass of the object.

Front

What is the formula for calculating force?

Back

Force is calculated using the formula: Force = Mass x Acceleration (F = m*a).