force Flashcards
1
Q
name the three types of forces
A
gravitational, magnetic and electrostatic force
2
Q
def of gravitational force
A
a pulling force that bodies exert on each other over a distance due to their masses
3
Q
what is weight measured in
A
newtons
4
Q
what instrument is used to measure an object on earth
A
spring balance
5
Q
2 like charges held together have what?
A
electrostatic potential energy
6
Q
def of magnetic force
A
a force that two magnetic materials exert on each other over a distance
7
Q
name magnetic materials
A
iron, colbalt, nickel, and steel
8
Q
what is a force of attraction
A
is a pulling force that two objects exert on one another
9
Q
what is a force of repulsion
A
is a pushing force that two objects exert on one another
