Physics 5 9l Forces and motion Flashcards
(15 cards)
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
