Mr.Raymond
What are the three different types of speed?
The three different types of speed are Average speed, Instantaneous speed, and Constant speed.
What is gravity?
A force of attraction between two objects due to their mass and distance between them.
If an apple with a mass of 2.5 kg is falling off a tree with the 9.8 m/s squared acceleration due to gravity what is its force?
24.5 Newtons
If Owen runs 1000 ft in 90 seconds what is his average velocity in meters per second.
Average velocity: 3.38 m/s
What are Newton's three laws of motion?
1st: "an object in motion stays in motion and an object at rest stay in rest until acted upon by an unbalanced net force."
2: "The force acting on an object is equal to the mass times the acceleration caused by the force."
3: "For every force there is an equal and opposite force."
What is the difference between distance and displacement?
Distance is the amount of ground an object covers and displacement is a measurement of how far something is from where it started.
What is scientific notation?
Scientific notation is a convenient way to express very large or very small numbers.
If a car starts from rest and reaches a final velocity of 45 m/s over 14 seconds what is the acceleration of the car.
Acceleration: 3.21 m/s squared
If the almighty powerful Keenan is playing tug of war against the rest of the science class and Keenan is applying 8,364 newtons of force to the right and the rest of the science class is applying a force of 6,291 newtons to the left what is the net force and in what direction.
Net force: 2,073 newtons to the right
What does the capital E stand for when typing scientific notation into a calculator?
E: times ten
What is speed?
The rate of change in a position.
What is the formula for power and work?
The formula for work is force times displacement and the formula for power is work divided by time.
If a basketball falls off of a building and it starts at rest and is acted on by the 9.8 m/s squared acceleration due to gravity and takes 3 seconds to hit the ground what is the velocity final.
Final velocity: 29.4 m/s
If Keenan falls off a cliff and exerts a force 5,000,000,000 newtons and has and acceleration of 9.8 meters per second squared what is his mass?
Mass:51,020,408.1 Kg
When a car slows down going into a turn it is an example of a change in what?
A change in velocity.
What are the three ways that an object can accelerate?
The three ways an object can accelerate is a change in direction, a change in speed, and a change in velocity.
What is a frame of reference?
A frame of reference is a reference point used to tell if an object is in motion.
If Connor is exerting 500J on a table over 3.25 seconds how powerful is Connor?
Power: 153.84 w
If Caden has a mass of 55 kg and is running with an acceleration of 5.4 m/s squared what is his force? If he ran 30 meters what is his work using the force you calculated above?
Force is 297N
Work: 8910 J
While driving a would a good frame of reference be and what would a bad frame of reference be?
A good frame of reference would be like a tree or fire hydrant or any fixed object.
A bad frame of reference would be something like a person because they are not stationary.
What is true about an objects motion with balanced forces acting on it?
This means the object is either not moving or is moving at a constant speed.
Which of Newtons laws of motion are also called the law of inertia?
It is Newton's first law.
If Keenan is exerting 5,146J of work onto a plane over 3 seconds of time what is his power? The what is his power in hp?
Power: 1715 W
Power in hp: 2.29hp
If Carter exerted 1235W of power running for 13 seconds what is his work?
Work: 16055 J
What is the format for writing a hypothesis?
The format for writing a hypothesis is if,then,because.