If you were observing and measuring the motion of toy jumping frogs, you would know that the jumping frogs had moved because the frogs will have done this.
What is changed position?
100
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
When performing an investigation, it is best to do it how many times?
What is at least 3 times?
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
Give three ways you could cause a rolling marble to take a longer time to travel from one end of a table to another.
What is friction, lower ramp, obstacles such as clay or blocks, etc.?
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
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.?
300
Friction is a force caused by___________.
What is surfaces rubbing against one another?
300
Bev 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 Bev 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.?
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
a push or a pull that does not touch an object to change motion.
What is a non-contact force?
400
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.)?
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
List three non-contact forces that can cause objects to move.
What is (something like) gravity, magnetic field, electric field?
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
This is a non-moving object in the background used to notice if something has moved.
What is a reference point?
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
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 four forces that affected the flight of the paper airplane were......
What is weight (gravity), lift, drag (friction), and thrust (push or pull)?
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.