4.5.1 - Forces and their interactions Flashcards
1
Q
What are Scalar Quantities?
A
Quantities that have magnitude only
2
Q
What are Vector Quantities?
A
Vector quantities have magnitude and an associated direction.
3
Q
What is a Force?
A
A push or pull that acts on an object due to the interaction
with another object.
4
Q
What are contact forces?
A
the objects are physically touching
5
Q
What are non-contact forces?
A
the objects are physically separated
6
Q
Name 4 examples of contact forces.
A
- Friction
- Air resistance
- Tension
- Normal contact force
7
Q
Name 3 examples of non-contact forces.
A
- Gravitational force
- Electrostatic force
- Magnetic force
8
Q
What is weight?
A
The force acting on an object due to gravity
9
Q
What is resultant force?
A
A number of forces acting on an object replaced by a single force that has the same effect as all the original forces acting together.
