large
Gravity gradually pulls the baseball down.
Its speed or direction changes
Air resistance slows the baseball as it moves through the air
They either push or pull objects
shadow
It has inertia
strength (magnitude) and direction
No, the light waves pass through it
When one object exerts force on a second object, the second object exerts force on the first. These forces are equal in strength and opposite in direction.
waves
Friction
long
Force
Inertia
greater
energy
Gravity
Make the car heavier to move faster down hill and give it smooth shape to reduce air resistance.
A surface with friction (ex. grass, carpet, sand)
An object in motion stays in motion unless a force acts on it. An object at rest stays at rest unless a force acts on it.
Acceleration
The force acting on an object can cause the object to speed up, slow down, or change direction.
Inertia
Two forces of equal strength push or pull on an object in opposite directions
When light passes through a clear windown, does the window have a shadow?
How do electric and magnetic forces act on different objects?
isThe tendency of an object to resist any change in motion is known as
Light is a form of _______.
The force that results when two materials rub against each other
Light energy travels in __________.
If a rock has a larger mass, the force on the mass must be _____ to give it a large acceleration
What makes your body rise out of your seat at the top of a hill in a rollercoaster?
What is Newton's First Law?
Why does a car keep rolling even if it runs out of gas?
What is one contact force that acts on a baseball after a pitcher has thrown the ball?
A push or pull that acts on an object
What happens when an object accelerates?
What is Newton's Second Law?
When the sun is low in the sky early in the morning, we form long or short shadows?
If you were building a car to enter a downhill race, what can you do to make your car go as fast as possible?
The greater the net force acting on an object, the ________ the acceleration of the object.
What is Newton's Third Law?
What kind of surface would slow a marble down as it rolled across the floor.
What is a non-contact force that acts on a baseball after a pitcher has thrown the ball?
the force of attraction between any two objects
A ______ is an area of partial darkenss where light has been blocked by an object.
The rate at which the speed or the direction of motion of an object changes over time is its
All forces have 2 things. What are these?
What is a balanced force?
