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
