Acceleration
Nature of force
Force, mass, acceleration
Friction and gravity
Etc.
100
What is acceleration?
Acceleration is the rate at which velocity changes
100
What is force?
A push or pull
100
What does Newton’s second law of motion explain?
How force, mass, and acceleration are related
100
What is gravity?
A force that pulled objects towards each other
100
What is motion?
A change in position
200
What three changes in motion are considered acceleration?
Increasing speed, decreasing speed, and changing direction.
200
What is Newton’s first law of motion?
Law of Inertia: An object in motion will stay in motion unless acted upon
200
What is the equation of Newton’s second law of motion
Force= mass*Acceleration
200
How come whatever goes up must come down?
Gravity
200
How are speed and velocity different?
Speed tells how fast you are going and velocity tells you speed and direction.
300
What is the formula for acceleration?
Acceleration= Final Velocity- Initial Velocity / time
300
When two forces have the same net force acting in opposite directions, it is called…
Balanced force
300
How can you increase an objects acceleration?
By increasing that objects force
300
What is the difference between friction and weight?
Friction is a force that happens when two objects rub against each other while weight is a measure of gravity on an object
300
What is the net force?
50N ⬅️
400
What can you use to analyze the motions of an object that is accelerationg?
A Graph
400
What is the difference between a balanced and balanced force?
A balanced force will not change the object motion while an unbalanced force will change an objects motion
400
One Newton is equal to…
1N= 1kg* 1m/s
400
What does the law of universal gravitation state?
It states that the force of gravity acts between all objects in the universe
400
What is the net force?
0N
500
A roller coaster rapidly picks up sped as it goes down a slope. Its speed is 4 m/s. 3 seconds later, at the bottom of the slope it’s 22m/s. What’s the average acceleration?
6m/s
500
Newton’s first law of motion states…
That an object rest will remain at rest until acted upon.
500
A 52 kg water-skier is being pulled by a speedboat. The force causes her to accelerate at 2m/s. Calculate the net force that causes this acceleration.
Force=104N
500
We are able to walk because of friction. What would happen if there was no friction? Would we still be able to walk?
Without friction we wouldn’t be able to walk, we would just be sliding across the floor
500
Draw a free body diagram.