Vocabulary
A push or pull on something.
What is a force?
If you were observing a jumping frog, this is what energy it has when it is jumping.
What is kinetic energy?
Mrs. Kelly rolled a marble across the floor to Miss Palmateer. What force started the ball rolling?
What is a push?
Give 1 way you can speed up a toy car moving down a ramp.
What is give it a harder push, raise the ramp to a higher level, or change the surface of the ramp to have less friction?
An object with more mass takes more force to move it.
What is Newton's 2nd Law?
Force that acts on an object when it rubs against another object or material.
What is friction?
When a pitcher throws a ball the gravity, air resistance, and the push from the hand together are called this.
What is Net Force?
This is the largest force that a rocket has to overcome as it takes off.
What is gravity?
If you drop a penny out of a window from the second, fourth, and seventh floors, it will hit the ground with the most force from this floor.
What is the seventh floor because it is the highest point and will have the most kinetic energy?
The measure of the amount of gravity pulling on an object.
What is weight?
Choose three contact forces that can cause an object to change motion.
a. push a stroller b. potential energy c. gravity
d. friction e. hit a baseball f. light waves
What is a kick, a push, a flick, bat hitting a ball, pulling something, throwing... etc.?
A force that causes some energy to transform into thermal and sound energy.
What is Friction?
If you rolled a basketball and a bowling ball on the same surface with the same amount of force, this one will roll the farthest.
What is the basketball?
Newton's 2nd Law
Newton's First Law of Motion states:
What is an object at rest will stay at rest and an object in motion will stay in motion unless acted upon by a force.
This is what you are observing if you are measuring speed and direction.
What is motion?
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 skateboarding dog will fall off the front of the skateboard when it hits the curb. B. A tennis ball when thrown into the air will bounce 14 times before it rests. C. A skier moves faster moving down the hill.
What is A?
This is why it is easier to skate fast in a skating rink than on the sidewalk.
What is there is less friction?
When one running football player hits another player and moves him, this explains why.
What is the running football player transferred his energy into the other player?
When a bouncing ball slows down and comes to a stop some of it's energy is
What is being transformed to sound energy?
This exists when all the forces acting on an object result in the object staying at rest.
What is zero net force?
This is what will happen if you apply a force to an object in the same direction that it is already moving.
What is it will continue to move in the same direction but move faster?
The 5th grade classes challenged each other to a tug-of-war tournament. Mrs. Witcher and Mrs. Muncey's classes started and Mrs. Muncey's class moved the flag to their side and won. Then, Mrs.Muncey and Mrs. Stanley's classes went. Neither team could pull the other team over. Give a statement about the forces involved in the tug-of-war between the three 5th grade classrooms. "The forces were ___________ because _______________. Then 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. Three of the four forces that affected the flight of the paper airplanes were......
What is gravity, friction, and the push.
A person moving in a wheelchair is an example of which law.
What is Newton's 3rd Law of Motion?