When a box is pulled across the floor, the box is being affected by _________ friction.
What is sliding
100
The sum of two or more forces on an object
What is net force
100
Weight is _______________________________________________________________________________.
What is the measurement of the force of gravity on an object
200
A object's tendency to resist a change in motion
What is inertia
200
The equation for calculating weight is _________and the unit of measurement for weight is ________.
What is w=mg (or weight = mass * gravity), newton (N)
200
An object at rest is experiencing what type of friction
What is static friction
200
When an object is at rest the net force = _______ and the object is said to be in ______________.
What is zero, equilibrium
200
A free body diagram is ____________________________________________________________________________________.
What is diagram that uses vectors to show all the forces acting on an object
300
Equipment that can be used to measure force
What is a spring scale
300
9.8 N/kg
What is measurement of the force of gravity on Earth
300
In tug of war, what type of force is at work on the rope?
What is tension
300
An object that is being pushed with a force of 5N to the right and is experiencing 3N of sliding friction to the left will experience a net force of ________ to the _______.
What is 2N, right
300
An object will be in motion if it is being acted on by _____________ forces.
What is unbalanced
400
The four types of forces
What are strong nuclear force, weak force, gravity, and electromagnetic force
400
The force of gravity on an object is its _______.
What is mass
400
Ice skates __________ the force of __________.
What is reduce, friction
400
In a free body diagram, an arrow that is longer than other arrows in the diagram indicates a ________ force.
What is greater
400
The force that occurs when two forces are pushing on an object from opposite directions
What is compression
500
Daily Double! Extra credit!
Strong nuclear force
What is the attraction of particles to each other in the nucleus of an atom
500
A person's weight on the moon is _________ than their weight on Earth because the force of __________ is less on the moon. What doesn't change from the earth to the moon is a person's _________.
What is less, gravity, mass
500
The definition of friction is _________________________________________________________________________________________.
What is a force that resists the motion of objects or surfaces as they move over one another
500
When an object is moving at constant speed forward, its net force = ________ because the friction force in the opposite direction is ________ to its forward force.
What is zero, equal.
500
If the ___________ of an object increases, the friction forces at work on that object will also increase.