Force Definitions ⭐️✨

Question 1

Friction

Answer 1

Friction is a force that acts between two surfaces that meet. When forces are applied so as to make the two surfaces slide over each other, then there will be an opposing frictional force acting along the surfaces

Question 2

Upthrust (buoyancy)

Answer 2

Upthrust is a force that pushes upwards on an object submerged in a fluid i.e. liquids and gases. It is always in the opposite direction to the object’s weight.

Question 3

Lift

Answer 3

Lift is the push that lets something move up. It is the force that is the opposite of weight.

Question 4

Air resistance

Answer 4

Air resistance (or drag), is a resistive force that acts against objects that are moving through the air.

Question 5

Thrust (engine force)

Answer 5

Opposite of drag. It is the push that moves something forward. For an aircraft to keep moving forward, it must have more thrust than drag.

Question 6

Weight

Answer 6

Weight is the force acting on an object due to gravity. The weight of an object depends on the gravitational field at the point in space where the object is.

Question 7

Contact force

Answer 7

Contact force is a force that is applied by objects in contact with each other. The contact force acts on a point of direct contact between the two objects

Question 8

Magnetic

Answer 8

The attraction or repulsion that arises between electrically charged particles because of their motion.