Vocabulary
True or False: A ball continues in motion under a balanced force
False: A ball stays at rest at a balanced force.
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.
Does friction work in the same direction or the opposite direction of an unbalanced force?
Friction works in the opposite direction of an unbalanced force.
Sandley started pushing a bookcase across the room.Then, he removed the books and continued pushing with the same force and direction. How does removing the books affect the motion of the bookcase?
The mass is decreased, making the bookcase move faster.
This is the force that acts against the Space X rocket as it accelerates from Earth on its way to Mars.
what is Gravity
Alix is playing with a soccer ball at the top of a hill. Alix kicks the ball and it rolls down the hill. What happens as the ball rolls?
The force of gravity pulls the ball downhill.
`Picture a ramp that someone slides boxes down. Describe how the incline of a ramp effects the speed of the box.
The greater the angle of the ramp, the faster the box will slide down
What is an increase in motion?
Acceleration
Which will experience more acceleration when the same force is applied, a 10kg object or a 5kg object?
What is the 5kg object?
Friction is a force caused by___________.
What is surfaces rubbing against one another?
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?
While on a camping trip, Nadely and Abigail are traveling in a boat on a river. On their trip, the river's current carries them down the river at a speed of 5 meters per second (m/s). They don't need to row because the current is carrying them in the direction they need to go. If no other forces are acting on the boat, describe the motion of the boat as it travels downstream?
It stays the same
This pulls objects to its center of the Earth. It keeps you grounded.
Gravity
What do you call a force causing a change in an object's motion?
An unbalanced force
The type of force which results in movement?
what is An unbalanced force.
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)?
Explain why a person standing on the Moon can jump higher than a person standing on Earth.
what is The Moon's gravitational pull is less than Earth's.
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?
Explain why a parachute makes a person falling from a great height fall more slowly?
The parachute causes air resistance, which slows the fall.
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 about the forces involved in the tug-of-war between the two 5th grade classrooms. "The forces were ___________ because ______________."
(something like) "The forces were balanced because the teams could not pull each other over"?
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?
True or false: If an object is moving at a constant speed, it is not accelerating.
True