Speed
What is the formula for speed?
Speed = Distance / Time
What is the formula for velocity?
Velocity = Displacement / Time (must be with a direction)
BONUS QUESTION Worth 1000 Points, let Mr. G explain
good luck
Define acceleration and provide an example of an object experiencing acceleration.
Answer: Acceleration is the rate at which an object's velocity changes over time. It is a vector quantity, encompassing both magnitude and direction. An example of acceleration is a car increasing its speed from 0 to 60 mph in 10 seconds.
How is speed different from velocity?
velocity needs a direction
Explain how the concept of inertia is related to mass.
Answer: Inertia is the tendency of an object to resist changes in its state of motion. Mass is a measure of an object's inertia; the greater the mass, the greater the inertia, and the more force is required to change its motion.
What is the difference between speed and velocity?
Answer: Speed is a scalar quantity that measures how fast an object is moving, calculated as the distance traveled divided by the time taken. Velocity is a vector quantity that specifies the rate at which an object changes its position, including both magnitude (speed) and direction.
What is the average speed of a cow that walks east 60 meters in 120 seconds? (Remember, the units must be m/s or km/hr)
0.5 m/s
Final Velocity = 50 m/s south Initial Velocity = 60 m/s south Time to change velocity = 5 seconds What is the acceleration of this object?
-2 m/s/s, south
Explain Newton's Third Law of Motion with a practical example.
Answer: Newton's Third Law of Motion states that for every action, there is an equal and opposite reaction. A practical example is when you push against a wall; the wall pushes back with an equal and opposite force, which is why you don't move through it. Not move
Define displacement and explain how it differs from distance.
Displacement is a vector quantity that refers to the change in position of an object, considering only the initial and final positions and the shortest path between them. Distance, on the other hand, is a scalar quantity that represents the total path length traveled by an object, regardless of direction.
A porcupine moved toward a pond at a speed of 5 m/s. It took him 8 seconds. What was the distance he traveled?
40 meters
An object travels 25 meters in 2 seconds east. What is it's velocity?
12.5 m/s east (must include direction!)
State Newton's First Law of Motion and provide a real-world example illustrating it.
Answer: Newton's First Law of Motion, also known as the law of inertia, states that an object at rest stays at rest, and an object in motion continues in motion with a constant velocity unless acted upon by a net external force. A real-world example is a book lying on a table remaining stationary until someone applies a force to move it. No, because since he's "attached to you", from his point of view you're standing still and everything else is moving.
What is inertia, and which of Newton's laws is it associated with?
Inertia is the tendency of an object to resist changes in its state of motion. It is directly associated with Newton's First Law of Motion, which states that an object at rest stays at rest, and an object in motion continues in motion with a constant velocity unless acted upon by a net external force.
If i told you a car was driving 100 mph north, I am describing rthe car's what?
Velocity
Describe a scenario where an object has a constant speed but a changing velocity.
Answer: An object moving in a circular path at a constant speed has a changing velocity because the direction of motion is continuously changing, even though the speed remains constant.
A car accelerates from rest to a speed of 20 meters per second in 5 seconds. What is its acceleration?
Answer: 4m/s2
How does Newton's Second Law of Motion explain the relationship between force, mass, and acceleration?
Answer: Newton's Second Law of Motion states that the acceleration of an object is directly proportional to the net force acting upon it and inversely proportional to its mass, expressed as F = ma. This means that for a constant force, increasing the mass will decrease the acceleration, and vice versa
If a car travels 60 kilometers east and then 90 kilometers west, what is its total distance traveled and its displacement?
Answer: The total distance traveled is the sum of both legs of the journey: 60 km + 90 km = 150 km. The displacement is the straight-line distance from the starting point to the final position, considering direction. Since the car ends up 30 km west of its starting point, the displacement is 30 km west.