Forces, Fundamental forces, FBDs, gravity & falling objects

Front

What type of force must act on an object for it to change its motion?

Back

Unbalanced force

Front

What is the force that acts perpendicular to the surface an object is resting on?

Back

Normal force

Front

What is the term for the vector sum of all forces acting on an object?

Back

Net Force

Front

If the net force acting on an object is 40 N, what does this indicate about the object's motion?

Back

The object is accelerating in the direction of the net force.

Front

What is an example of a field force?

Back

The moon in orbit around the Earth.

Front

What is the force of attraction between two masses called?

Back

Gravitational force

Front

What is the effect of balanced forces on an object?

Back

The object remains at rest or continues to move at a constant velocity.

Front

What is the formula for calculating net force?

Back

Net Force = Sum of all forces acting on an object.

Front

What is the gravitational force acting on an object near the Earth's surface?

Back

Weight, calculated as Weight = mass × gravitational acceleration (9.8 m/s²).

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force of gravity acting on that mass.