Forces, Scalars, and Vectors

Flashcards about forces, scalars, and vectors based on lecture notes, designed for review and exam preparation.

What are scalar quantities?

Quantities that are measured with numbers and units and have only magnitude.

Examples of scalars are __.

Distance, Temperature, Time

What are vector quantities?

Quantities that are measured with numbers, units and a direction and have both magnitude and direction.

Examples of vectors are __.

Acceleration, Displacement, Force

A force is defined as __.

A push or a pull action.

Effects of forces include __.

Change the position, change the direction or speed, change the shape (deform), cause rotation

The unit of force is the __.

Newton (N)

Contact forces __.

Occur when two objects interact by touching.

Examples of contact forces are __.

Air resistance, Friction, Tension

Non-contact forces __.

Occur even though objects are separated by distances.

Examples of non-contact forces are __.

Magnetic, Electrostatic, Gravitational

Frictional force __

Opposes motion.

Weight is __.

The force that earth or another large planet exerts on an object.

Normal force is __.

The force that a surface exerts on an object.

Tension force is __.

The force found in a cable, rope or string.

Thrust is __

The force that pushes an object forward.

Upthrust force is __.

An upward force that acts in water or the force that pushes an object upwards in a liquid or a gas.

Air resistance is __.

This force acts in the air and slows an object down moving through it.