Forces 1 Flashcards
1
Q
What is a force?
A
A push or pull that acts on an object due to the interaction with another object.
2
Q
What are the units of force? Abbreviation?
A
newtons (N)
3
Q
List the three non-contact forces
A
Gravitational force, electrostatic force and magnetic force.
4
Q
Give the equation that links the weight (W) of an object, its mass (m) and the gravitational field strength (g)?
A
weight = mass x gravitational field strength.
5
Q
What is the value of the gravitational field strength on Earth?
A
9.8 N/kg.
6
Q
Name a device that can be used to measure an object’s weight
A
Calibrated newtonmeter.
7
Q
What are the units of gravitational field strength?
A
N/kg.
