Scientific Method & Measurement
Study of matter and energy
Physical Science
This term describes speed with direction.
velocity
This law explains why you lurch forward when a car stops suddenly.
newtons 1st law
Is work being done when a man pushes a box but it does not move.
no work is being done
What is the average kinetic energy of particles?
Temperature
In an experiment testing how drop height affects bounce height, this is the dependent variable.
bounce height
This is the hiker’s displacement after walking 5 km east and 3 km west.
2 km east
An object in motion stays in motion unless acted on by an unbalanced force” refers to this law.
newtons 1st law
A person applies 50 N to a lawn mower and moves it 30 m. This is the work done.
1500J
Type of heat exchange that does not need matter
radiation
In an experiment testing how drop height affects bounce height, this is the independent variable.
drop height
A car traveling 400 m in 20 seconds has this speed.
20m/s
“For every action there is an equal and opposite reaction” refers to this law.
newton's 3rd law
This object is NOT a simple machine: wheelchair ramp, bicycle, screw, or hammer.
bicycle
This is the heat needed to raise 1 g of a substance by 1°C.
specific heat
This is what 10°C becomes when converted to Kelvin.
283K
When a car moves forward but slows down, acceleration points in this direction.
Backwards
Acceleration is in the direction of the net force” refers to this law.
newton's 2nd law
A hammer with input force 125 N and output 2,000 N has this mechanical advantage.
16J
A metal spoon getting hot in soup is an example of this type of heat transfer.
conduction
A runner completes 100 meters. This is that distance in kilometers.
0.1 km
An object with no change in velocity has this acceleration.
zero acceleration
A 1,000-kg car accelerating at 5 m/s² experiences this force.
5000 N Force
A 60-kg jogger running at 3 m/s has this kinetic energy.
270J