Kinematics
What is the science of how things move?
Kinematics
Work
Complete the sentence:
_______ energy is the energy of motion.
Kinetic
Complete the sentence:
Multiple, simultaneous forces that cancel each other out (i.e. no acceleration) are called ______ forces.
Balanced
Complete the sentence:
Work is a _____ quantity.
scalar
If a car drives 85 kilometers in 1.5 hours, what is the speed in km/hr?
About 57 km/hr
Complete the Sentence:
Work is dependent on the _______ that an object ____.
Distance; moves
Complete the sentence:
_______ uses uranium as a fuel source.
Nuclear Energy
You push a 30 kg door with a force of 3 N and it exerts a 3 N force back on you. Which one of Newton's Law of Motion does this statement demonstrate?
Newton's 3rd Law of Motion
The following statement is the definition of which of Newton's Law of Motion?
An object at rest remains at rest and objects in motion continue in a straight line at a constant velocity unless acted on by a net external force.
Newton's 1st Law
A shotput is dropped from about 8 m above the ground, what is the speed when it hits the ground?
About -12.5 m/s
A driver pushes on a car with a force of 8000 N for 15 s but is unable to move it. How much work is done?
0 J
How much gravitational potential energy does an 80 kg skydiver have if he is about to jump out of an airplane 3850 m above the ground?
3,018,400 J
Acceleration toward the center of a circle is called
Centripetal Acceleration
What do we call a force that tries to rotate an object around its axis?
Torque
What is the acceleration from gravity on Earth?
9.8 m/s2
You use 500 N of force to push a cabinet that weighs 1875 N up to the top of the ramp. How much work did you do if the ramp has a length of 18.0 m?
9000 N
What is the kinetic energy of a 15.0 kg bicycle traveling at 3.2 m/s?
76.8 J
If a thrown ball has a mass of 10 kg and its acceleration is 4.5 m/s2, what is the force applied to the ball?
45 N
Which of Newton's Laws is defined by the following statement?
The acceleration of an object is directly proportional to the net force acting on the object and is inversely proportional to its mass. (i.e. F=MA)
Newton's 2nd Law
If a car manufacturer advertises that their model can go from 0 to 60 mph in 3.0 seconds, what about their car are they describing?
Acceleration
What is defined as the amount of work done per second?
Power
Complete the sentence:
The sum of all forms of kinetic and potential energy in a system is called _______.
Mechanical Energy
What is the weight of a 40 kg man on Jupiter where gravity is 5 times larger?
1960 N
What is the gravitational acceleration, g, if a 80 kg man on Europa (a moon of Jupiter) has a weight of 280 N?
3.5 m/s2