Vocabulary
The tendency of an object to resist a change in motion.
What is intertia?
Ms. Moore rolled a marble across the floor to Mr. Young What force started the ball rolling and what force stops the ball from rolling? (balanced force, unbalanced force, gravity, friction)
An unbalanced force and then friction.
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?
a force that causes metals to push or pull away from one another
Magnetism/ magnet
A substance or object that allows energy to flow through it easily
Conductor
Which will experience more acceleration when the same force is applied, a 10kg object or a 5kg object?
What is the 5kg object?
Picking up a heavy box is more difficult than putting down a heavy box. What is a likely explanation for this?
Gravity is pulling the box down which makes it easier to put down. It makes it harder to pick up as gravity is pulling down.
A pulling force; on Earth, gravity pulls objects down closer to the Earth's surface
Gravity
What is needed to give a boulder acceleration?
A force that is strong enough to overcome the boulder's inertia.
If Sebastian pushes his Barbie corvette, it will roll and then come to a stop. What causes Sebastian's Barbie corvette to come to a stop?
Friction and gravity.
Forces that are acting on an object in different directions and are not the same strength; result in a change in position, direction, or motion
Unequal force
What will fall faster or be harder to move, a 5kg pound of feather or a 2kg of bricks?
2kg bricks
Mrs. Moran's 5th grade class and Mr. Simper's 5th grade class challenged each other to a game of tug-of-war. Each class grabbed onto different ends of the long rope. Neither team could pull the other team over. Give a statement, "The forces were ___________ because ______________."
(something like) "The forces were balanced because the teams could not pull each other over"?