Vocabulary
Mrs. Lugo rolled a marble across the floor to Mrs. Spivey. What force started the ball rolling? (balanced force, unbalanced force, gravity, friction)
What is an unbalanced force?
When performing an investigation, it is best to do it how many times?
Example answer: What is at least 3 times, or any number more than 1?
In order to change the motion of objects, you would have to apply this.
What is an unbalanced force?
The measure of how much an object weighs.
What is mass?
An object's tendency to resist a change in motion
What is inertia?
Name three contact forces that can cause an object to change motion. Be specific.
What is a kick, a push, a flick, bat hitting a ball, pulling something, throwing... etc.?
Sallu Sue thinks that a bowling ball will fall faster to the ground than the volleyball. Jack thinks that they will hit the ground at the same time. What is the best plan for Sally Sue and Jack to test their ideas? a. Measure the mass of a variety of balls to determine which ball will hit the ground first because it has more mass and heavier objects fall faster than lighter objects. b. Roll the bowling ball and the volleyball off a desk or table and see which one hits the ground first. c. Drop the bowling ball and the volleyball off a desk or table and see which one hits the ground first. d. Measure the circumference of the bowling ball and the volleyball to determine which will hit the ground first.
What is (c.) Drop the bowling ball and the volleyball off a desk or table and see which one hits the ground first.?
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?
a push or a pull that creates a change in motion
What is a unbalanced force?
Newton's First Law of Motion states that moving objects will move forever, and resting objects will rest forever, unless some outside forces acts on them. Choose the BEST observation that supports Newton's First Law. a. A ball that is not moving will remain still unless an outside force, such as a kick or push, acts on it to make it move. b. A tennis ball when thrown into the air will bounce 14 times before it rests. c. Friction is a force that changes the speed and direction of motion. d. Gravity is a force that pulls objects toward Earth.
What is (a.)?
What is a non-contact forces that can cause objects to move.
What is (something like) gravity, magnetic field, electric field?
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)?
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?
Name the 2 forces that oppose a change in motion on an object.
What is gravity, friction, air resistance, and drag?
Mrs. Schulze's 5th grade class and Mr. Brown's 5th grade class challenged each other to a game of tug-of-war. Each class grabbed onto different ends of the long rope. Mr. Brown 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"?
Billy and Bob were testing the flight of paper airplanes as they tossed them across the school gym. The airplanes flew across the gym and then came to a rest on the floor. The forces that affected the flight of the paper airplane were......
What is gravity, air resistance, drag, and a pushing force to start moving the paper airplane?
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.
What is force, balanced, and force?