Mrs. Kelly rolled a marble across the floor to Miss Palmateer. What force started the ball rolling?
(balanced force, unbalanced force, gravity, friction)
What is an unbalanced force?
100
The measure of the pull of gravity on an object.
What is weight?
200
Force that acts on an object when it rubs against another object or material.
What is friction?
200
In order to change the motion of objects, you would have to apply this, which is a push or a pull.
What is an unbalanced force?
200
This is the force that acts on a space shuttle as it accelerates toward Earth.
What is gravity?
200
The measure of how much matter is in an object.
What is mass?
300
The measure of the amount of gravity pulling on an object.
What is weight?
300
Friction is a force caused by___________.
What is surfaces rubbing against one another?
300
The first part of Newton's First Law of Motion states: An object ___ ______ tends to _____ ____ ____ unless acted upon by an ________ _______.
What is at rest, remain at rest, and unbalanced force?
400
Jackson was investigating the use of magnets to move objects. He observed that some objects moved toward the magnets without having to touch them. Jackson's observation can be described like this: The _______ ________ produced a ___-________ _________ that moves objects over a distance.
What is magnetic field and non-contact force?
400
The second half of Newton's First Law of Motion states: An object in _______ in a straight line tends to ______ _____ _______ in a straight line unless acted upon by _____________ __________.
What is motion, stay in motion, another force (or outside force)?
500
This exists when all the forces acting on an object result in the object staying at rest or moving at a constant speed in the same direction.
What is balanced force?
500
Mrs. Kelly's 5th grade class and Miss Palmateer's 5th grade class challenged each other to a game of tug-of-war. Each class grabbed onto different ends of the long rope. Miss Palmateer blew a whistle and both teams began to pull and pull. Neither team could pull the other team over. Give a statement about the forces involved in the tug-of-war between the two 5th grade classrooms. "The forces were ___________ because _______________."
What is (something like) "the forces were balanced because the teams could not pull each other over"?
500
You can describe an object sitting at rest on the ground as follows: The ______ of the object on the ground is _________ with the ________ of the ground on the object.