True or False. A smoother surface causes more friction.
What is false
100
A push or pull on an object.
What is Force
100
The force that pulls objects to the ground on Earth.
What is Gravity?
100
Two students push a table to the right with a force of 5N and 10N. What is the net force on the table?
15 N to the right.
100
True or False: An unbalanced force causes no change in the motion of an object.
What is False
200
Does more weight pushing down on a surface increase or decrease the force of friction?
Increase.
200
A change of speed
What is Acceleration
200
which way a force is acting.
What is direction?
200
the net force of any object experiencing balanced forces
What is zero?
200
Will increasing the force acting on an object cause it to accelerate more or less?
more
300
In what direction does gravity always act?
down towards the ground
300
The force that acts between two surfaces when they move against one another, slowing them down.
What is Friction
300
The unit used to measure Force
What are Newtons?
300
Two students fight over a book bag. One pulls to the left with a force of 25N and the other pulls right with a force of 30N. What is the net force on the book bag?
5 N to the right.
300
A book sits on a desk, but isn't moving. What forces are acting on it?
Gravity and Normal Force
400
In what direction does friction always act compared to the motion of an object?
backwards or the opposite direction of motion
400
The total of all forces acting on an object.
What is Net Force
400
"how much" force or the strength of the force.
what is magnitude?
400
An apple falls from a tree and is moving towards the ground. Are the forces on the apple balanced or unbalanced?
Unbalanced
400
When the forces acting on an object are equal magnitude, but in opposite direction.
What is Balanced Force
500
Why are gravity and friction studied more closely than other forces?
They are extremely common in every day life.
500
The resistance an object has to a change in its state of motion.
What is Inertia
500
The force that stops an object from moving through a solid surface by putting an equal force in the opposite direction.
What is Normal Force?
500
When net force is zero, what do you know about the acceleration of an object?
It is not accelerating
500
If the same force is applied to a football and a desk, which will accelerate more?