Newton's Laws
What does Newton's first law say?
The law of inertia is an object at rest or in motion will stay at rest or in motion until acted on by a force.
What is Friction?
The force from two objects touching
Friction is a non-contact force or a contact force?
Contact Force
An object with a balanced force acting on it does what? Move or does not move?
does not move
Force has Strength, magnitude and ____________?
Direction
What does Newton's second law say?
Objects with more mass will require more force. Objects will less mass will require less force.
What is Gravity?
A non-contact force that pulls objects down
Gravity is a non-contact force or a contact force?
non-contact force
An object with a unbalanced force acting on it does what? Move or does not move?
moves
When you are in a car/boat/roller coaster and your body lifts in the air or slides to the side or falls forward. What makes you do all these things?
Inertia
What does Newton's third law say?
Law of action and reaction. For every action there is a equal and opposite reaction.
What is Acceleration?
The change in speed and or direction.
If I push a trash can on a cart at a 100 newton and push a freezer on a cart at the same force. Which will hit a speed of 120 miles per hour first?
The trash can
If Bob pushes on a ball with 5 newtons on the right side and joey pushes on the ball with 5 newtons on the left side. Is this a balanced force or and unbalanced force?
Balanced Force
Which would experience less air resistance? The smooth compact airplane or the wide airplane?
Smooth and compact airplane
Tell me where Newton's first and third law happen when you are dribbling a basketball?
First- putting force into the ball to move it out of a state of rest into a state of motion. Plus the inertia is keeping the ball moving
Third- the action of the ball pushing down on the floor causes a equal reaction of the ball going up.
What is Inertia?
The tendency for an object to resist change in motion
Air resistance is a non-contact force or a contact force?
Non-contact force
If 7N are pushed down on a box. Then 4N are pushed up on the box. Is this force balanced or unbalanced?
Unbalanced
How can I make a ball roll down the hill faster?
Any answer may would:
Apply more force
More mass
Smooth surface
compact
I have to roll a bowling ball and soccer ball 50 feet. Which one will require more force and why to roll it that far?
The bowling ball because it has more mass.
What is Mass?
How heavy an object is.
Kicking a soccer ball is a non-contact force or a contact force?
Contact force
Student A is pushing student B with 10N and student B is pushing back with 15N of force. What is going to happen to the students and who is going to get pushed backwards?
Student A will get pushed backwards because they are pushing with less force than student B
When you experimented with magnets at the start of the unit what force do they have on objects?
either a push or pull