# Physics 5 9l Forces and motion Flashcards

Name two forces acting on an object.

Gravity, upthrust

What is mass?

Mass is the amount that can be put into an object.

What is a force?

A force is a push or a pull?

What is a lever?

A lever is a force multiplier.

What is the point of a lever that stays still?

A pivot point.

What does an unbalanced force mean?

It means it is moving.

What does a balanced force mean?

It means it’s not moving.

What tells the speed of a time series graph?

The gradient of the graph

On a time series graph what does a horizontal line mean?

It means it is staying still

What are forces measured in?

Newtons

How do you calculate pressure?

Force divided by area

If a car tire is hot will the pressure in the tire be higher or lower?

Higher.

What 2 things increases when you heat up air particles in a tire?

Hint; what does the particles hit and what this topic is about.

Rate of collision, pressure

What is a force field?

An invisible barrier of force

What do you use to measure force?

Newton meter