No student devices needed. Know more
15 questions
What is a contact force?
A force that needs two objects touching each other
A force that does not need the objects to touch to occur
A force that impacts an object
What will cause an object to move?
Applied forces
Balanced forces
Unbalanced forces
The force that pulls things towards earth
Speed
Gravity
Normal
Air resistance
The unit of force is
m/s
m/s2
Newtons
kg
When two equal forces act in opposite directions on an object, they are called ______________________.
frictional force
balanced force
centripetal force
gravitational force
What is the net force?
400 N Up
400 N Down
800 N Up
800 N Down
A moving object experiences equal but opposite forces. This means the object
must come to rest since the forces are equal and opposite.
must be at constant speed since the forces are equal and opposite.
must be accelerating since the forces are equal and opposite.
must be changing direction since the forces are equal and opposite.
when you sit on a chair the net external force on you is
zero
up
down
depends on your weight
What is inertia?
the resistance of an object to change its motion
the increase or decrease in the velocity of an object
the amount of matter that makes up an object
kind of like an intestinal hernia but smaller
The size of a force is called its
Direction
Magnitude
Amount
Sense
Explore all questions with a free account