Force and Motion

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to change its state of motion, either by starting to move, stopping, or changing direction.

Front

State Newton's Second Law of Motion.

Back

Newton's Second Law of Motion states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. This can be expressed with the formula: force = mass x acceleration.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. The greater the mass of an object, the greater its inertia.

Front

How do you calculate force?

Back

Force can be calculated using the formula: force = mass x acceleration.

Front

What is the relationship between mass and weight?

Back

Weight is the force exerted by gravity on an object, calculated as weight = mass x gravitational acceleration (approximately 9.8 m/s² on Earth).

Front

What is acceleration?

Back

Acceleration is the rate at which an object changes its velocity. It can be caused by a change in speed or direction.

Front

Give an example of Newton's First Law of Motion.

Back

An example of Newton's First Law is a soccer ball that remains at rest until a player kicks it, demonstrating that an object at rest stays at rest unless acted upon by an unbalanced force.

Front

What does it mean for forces to be balanced?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion of the object.

Front

What is gravitational force?

Back

Gravitational force is the attractive force between two masses, such as the Earth and an object, which gives weight to the object.

Front

How does mass affect acceleration?

Back

According to Newton's Second Law, as mass increases, acceleration decreases for a given force. This means heavier objects require more force to accelerate.