work
While carrying a heavy box horizontally down a long hallway at a constant speed, the total amount of scientific work you do on the box is exactly equal to?
It equals to 0 no work is happening because your push and pull are in different directions
What is the unit for motion?
Meters
The textbook states that during a race, motorcycles get the energy to do work from the burning of this material.
Fuel or gasoline
power is explicitly defined as the rate at which this is done.
What is work?
If you push a cart with a force of 10 Newtons and move it a distance of 5 meters how much work happened?
Force x Distance so 10x5=50 J
if its position changes relative to another object.
Motion
The book lists light, sound, and electricity as three distinct types or examples of ?
Energy
If you carry a heavy bag of groceries up a flight of stairs, the amount of work you do is exactly the same whether you choose to walk or do this.
If you use 100 Joules of work to push a heavy crate exactly 5 meters across the floor what will the Force equal
Force=work/distance 100/5=20N
According to the text, energy from the sun is transferred across space to Earth in this specific form.
Electromagnetic radiation
According to the textbook, when you touch something hot, you can't see the thermal energy directly, but you can always observe this effect
What is the feeling of heat
According to the book , an object can demonstrate that it has more power by performing the exact same amount of work in this relation to time.
What is less time?
A student lifts a 20-Newton backpack straight up off the floor and holds it completely still at shoulder height for 10 minutes.
0 no work happened because no motion took place and the push and pull weren’t in the same direction
This specific type of energy is what is transferred from the food you eat directly to your body.
Chemical energy
The textbook highlights this process when it explains how chemical energy goes from food to your body, or how solar energy travels across space.
What energy is transferred
When a gardener lifts a plant to a high shelf, this is what she has directly transferred from herself to the plant.
What is energy?
If you walk up a flight of stairs in 20 seconds, and then run up the exact same stairs in 5 seconds, Which does less work?
They both do the same amount of work but one uses more power then the other
The textbook states that a pitched baseball would not speed toward home plate without this being supplied by the pitcher.
Energy
The textbook states that when fuel burns inside a motorcycle, it changes into other substances and does this to its stored energy.
What does it release
According to the textbook, an object has more power if it does more work in the same amount of time, or if it does the same amount of work in less time, because power equals the amount of work done in this specific duration.
What is the unit of the time?