9I Forces & Motion the basics Flashcards
1
Q
What are Non contact forces?
A
Forces that don’t need to touch an object to exert force.
2
Q
Name 3 Non contact forces.
A
Magnetic, Weight and Electrostatic.
3
Q
True or false, upthrust only exists in fluids.
A
True.
4
Q
How is friction measured?
A
Movement compared to the object’s surroundings.
5
Q
What increases friction?
A
Faster movement.
6
Q
Which way does friction go?
A
The opposite way to motion, Friction opposes motion.
7
Q
What is another name for thrust?
A
Applied force.
8
Q
What force is created by a machine?
A
Thrust.
9
Q
From what angle is normal contact force exerted on an object.
A
90 degrees
10
Q
What is the standard index for force?
A
Newtons.
11
Q
How is pressure measured?
A
force/area
