DEFINITIONS Flashcards
(34 cards)
Spring balance
A measuring device that uses a stretched string to measure force in Newtons (N)
Deceleration
When something slows down
Inertia
The tendency to resist any change in motion
Newton (N)
Unit used to measure force
Acceleration
When something moves faster
Atom
Tiny particles that everything is made up of
Magnet
Attracts objects containing metal
Compass
An instrument showing the direction of magnetic north
Electromagnet
A type of magnet in which the magnetic field is produced by an electric current
Protons
Positively charged particles found in the nucleus of an atom
Electrons
Negatively charged particles found in the space around the nucleus of an atom
The ends of a magnet
Magnetic pole
Gravitational field
Objects inside this field will experience gravitational force
Repulsion
A force by which objects repel one another
Attraction
A force that draws objects together
Velocity
The speed of something in a given direction
Force field
An area in which a particular force exists and can be felt
Weight
The pulling force of gravity on an object
Stability
Balanced
Non-contact force
A force applied to an object by another body that is not in direct contact with it
Motion
The change in position of an object
Contact force
A force that occurs between surfaces
Air resistance
Friction between an object and the air around it and slows the object down
Gravity
The force of attraction between two objects. The force pulling objects toward the Earth