Chapter 0
How close a measurement is the the accepted value.
What is accuracy?
Speed at an exact point
What is instantaneous speed?
Force that resists motion
What is friction?
Why we never reach IMA
What is friction?
0.002 in Scientific Notation
What is 2*10-3?
The variable manipulated in an experiment
What is the independent variable?
Speed and direction of an object
What is velocity?
Gravitational pull on an object
What is weight?
Class of lever with fulcrum in the middle
What is first class lever?
Units Newtons is the abbreviation for
What is kg*m/s2?
The mode of the following data set: 5,9,9,8,4
What is 9?
Point motion is based off of
What is a reference point?
Object's ability to resist a change in motion
What is inertia?
The mechanical advantage if the input force is 5 N and the output force is 9 N? (MA= Output force/Input force)
What is 1.8?
The two ways to decrease friction
What is decrease surface area and apply a lubricant?
3694639 in 3 Significant Digits
What is 3690000?
Slope of a distance-time graph
What is speed?
Change in velocity
What is acceleration?
The efficiency of a machine if the input work is 20 W and the output work is 15 W? (Output work/Input work *100%)
What is 75%?
The two factors that affect the strength of gravity
What is mass and distance?
63 g/mL in kg/L
What is 63 kg/L?
Three ways an object can accelerate
What is speed up, slow down, and change direction
Unit for momentum
What is kg*m/s
The IMA of an inclined plane if the height is 5 m and the length is 7 m? (IMA = length/height)
What is 1.4?
Compound machine W is made of a wheel and axle and a screw. The efficiency of the wheel and axle is 89% and the efficiency of the screw is 70%. What is the efficiency of compound machine W?
What is 62.3%?