Graphing Distance & Time
Forces
The Law of Gravity
Balanced & Unbalanced Forces
Laws of Motion
100
Look at the graph. The speed of the object is at a stop here.
What is stationary?
100
A toy car rolls and comes to a stop. This is what makes the car stop.
What is a force applied to the car in the opposite direction that it is moving?
100
A leaf falls from a tree in a crooked path to the ground. This is why the leaf did not fall straight to the ground.
What is gravity and air currents applied unbalanced forces to the leaf?
100
A rock rolling accelerating as it rolls down a hill is an example of this type of force.
What is unbalanced?
100
He is the scientist who is credited with the 3 Laws of Motion.
Who is Isaac Newton?
200
This line on the graph shows the fastest constant speed.
What is line A?
200
You rub a balloon in your hair and the balloon sticks to the wall. This is what is responsible for the balloon sticking to the wall.
What is electric force?
200
The strength of the gravitational force between two objects depends on mass and distance. The gravitation pull will be lowest between these two objects.
What are objects of lower mass that are further apart?
200
The following picture shows forces acting on a sneaker. The sneaker is moving toward the spring scale and speeding up.
This is the direction the net force is acting.
What is to the left?
200
An object at rest will remain at rest and an object in motion will remain in motion until acted upon by an unbalanced force.
What is Newton's 1st Law of Motion?
300
This statement describes the motion of the toy train from this graph.
What is the toy train moves forward at a constant speed, slows down, then stops?
300
The following are examples of forces. This one is an example of a contact force:
An apple falling from a tree
A magnet repelling another magnet
A wood block sliding across the top of a desk
Hair standing up after taking off a wool cap
What is a wood block sliding across the top of a desk.
300
The force of gravity causes an attraction between objects in space. Because the sun has more mass than the planets, it has either a stronger or weaker gravitational force.
What is stronger?
300
The illustration shows the forces,, in Newtons(N), acting on three different blocks.
This block will move under these conditions.
What are blocks 2 and 3?
300
For every action there is an equal and opposite reaction.
What is Newton's 3rd Law of Motion?
400
This type of line on a graph best describes a car traveling at a constant speed.
What is a line starting at zero and moving up at a 45 degree angle?
400
Moving a magnet near a compass needle causes the needle to move. The magnet never touches the compass. This is an example of this characteristic of magnetic fields.
What is they exert a force over distances?
400
The planets in the solar system are held in their positions by their gravitational attraction to the Sun. These two factors affect the strength of the gravitational force between the planets and the Sun.
What are mass and distance?
400
Two horses pull in opposite directions, but together move in one direction. The forces are balanced/unbalanced and the force of horse 1/horse 2 is greater.
What is unbalanced and horse 2?
400
The force of an object is equal to its mass multiplied by its acceleration.
What is Newton's 2nd Law of Motion?
500
This is the definition of speed.
What is the distance an object travels per unit time?
500
This is the formula for force.
What is mass times acceleration?
500
This is the definition of gravity.
What is the force that pulls all objects with mass toward one another.
500
The diagram below shows forces acting on a model airplane. Both its speed and height above the ground are constant. This would cause the model airplane to descend toward the ground.
What is the lift is less than the weight?
500
The rate of change of velocity which includes speeding up, slowing down, or changing direction.
What is acceleration?
600
This is the formula for speed.
What is distance/time?
600
This is the overall force acting on an object.
What is net force?
600
Newton's Universal Law of Gravity states this.
What is every particle in the universe attracts every other particle?
600
This is the definition of an unbalanced force.
What is unequal forces which will cause a change in an object's motion?
600
DAILY DOUBLE!!
Force is measured in kg x m/s2.
What are Newtons?
700
This is the definition of Velocity.
What is the speed in a given direction?
700
This is the definition of force.
What is a push or pull on an object?
700
DAILY DOUBLE!!!
If you dug a hole through the earth to the other side, gravity would _______________ until you hit the center of the earth and then _______________ until you come out the other side of the earth.
What is decrease and then increase?
700
This is the definition of a balanced force.
What is equal forces which will not cause a change in an object's motion?
700
DAILY DOUBLE TRIPLE QUADRUPLE!!!
Sir Isaac Newton is considered the father of __________________.
What is calculus?