Vocabulary
Newtons Laws
Gravity
Examples
Force
Friction
100
An objects tendency to resist movement is called ________.
Inertia
100
What is Newton's 1st Law
Newton's First Law is that an object at rest will stay at rest and an object in motion will stay in motion until an unequal force acts upon it.
100
What two things affect the strength of gravity?
The mass of the objects and the distance between them.
100
If you kicked a soccer ball while in outer space it would travel at the same speed in the same direction potentially forever. Which of Newton's Laws is this an example of?
Newton's 1st Law
100
Two teams are playing tug-o-war, they are pulling the rope but it isn't moving one way or another. This shows that the forces are _________.
balanced
100
Which is not a type of friction?
-sliding
-rolling
-stationary
-static
stationary
200
A force that pulls things towards the center of the Earth is called ___________.
Gravity
200
What is Newton's Second Law?
The acceleration of an object depends on the mass of an object and the size of the force acting on it.
200
When you drop a ball and it lands on the ground, this is caused by __________.
Gravity
200
A ball at rest on the ground. It will stay at rest until a force acts on it. This is an example of which of Newton's Laws
First Law of Motion
200
What is the net force of a box with balanced forces acting on it?
0 N
200
Air resistance is an example of ________ friction.
fluid
300
Any push or a pull on an object is called __________.
Force
300
What is Newton's Third Law?
Newton's Third Law is that for every action there is an equal and opposite reaction.
300
What two factors affect gravity?
mass and distance
300
The amount of force needed to throw a bowling ball is much greater than the force required to throw a baseball. This is an example of which of Newton's Laws?
Newton's 2nd Law
300
What is the force of an object with a mass of 4kg and an acceleration of 2m/s2?
8 N
300
A bus tires on the road is an example of _____ friction.
sliding
400
The force that opposes motion is called______.
Friction
400
When we measure force, what unit do we use?
Newtons
400
1. If you are on mars will your mass or weight stay the same?
2. Which would change? Why?
Mass would stay the same
Weight changes because of gravity?
400
When you paddle a kayak through the water, the paddle pushes against the water which causes the kayak to travel in the opposite direction. This is an example of which of Newton's Laws of motion?
Newton's 3rd Law
400
What is the mass of an object with a force of 10N and an acceleration of 2m/s2? (Unit for mass is kg)
5kg
400
A pencil on a desk is an example of ____ friction.
static
500
A change in an objects speed or direction is called _______.
Motion
500
What are three of Newton's other contributions to science?
Telescopes
Calculus
Gravity
Light
Astronomy
500
Which pair has the strongest gravitation force? Why
Who first noticed gravity and gave it its name?
Pair 2 because of MASS
500
When you are driving in a car and the car slams on breaks. This is an example of _____. Which law does this come from?
Inertia, Newton's 1st Law
500
What are the types of friction?
1. fluid
2. rolling
3. static
4. sliding
500
What is the strongest friction to overcome?
static friction