Show:
Kinematics
Forces and Motion
Work and Energy
Momentum
Rotational Motion
100
The branch of mechanics concerned with the motions of objects without being concerned with the forces that cause the motion.
What is Kinematics?
100
Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.
What is Newton's first law of motion?
100
According to the work-energy theorem, if work is done on an object, its potential and/or kinetic energy changes. Consider a car that accelerates from rest on a flat road. What force did the work that increased the car’s kinetic energy?
What is the friction between the road and the tires?
100
A lunar vehicle is tested on Earth at a speed of 10 km/h. When it travels this fast on the moon, how does its momentum compare to the momentum on Earth?
What is the same as on Earth?
100
A car rounds a curve while maintaining a constant speed. Is there a net force on the car as it rounds the curve?
What is yes?
200
This is the acceleration at the very top point on the path of a projectile.
What is 9.8 m/s/s?
200
The relationship between an object's mass m, its acceleration a, and the applied force F is F = ma.
What is Newton's second law of motion?
200
A stretched spring must have
What is potential energy?
200
When an apple falls from a tree and strikes the ground without bouncing, what happens to its momentum?
What is the momentum of the falling apple is transferred to the Earth?
200
The force that causes an object to follow a circular path is
What is a centripetal force?
300
This is the velocity at the very top point on the path of a projectile.
What is zero?
300
For every action there is an equal and opposite reaction.
What is Newton's third law of motion?
300
A diagram that depicts the type and the direction of all the forces acting upon an object.
What is a free body diagram?
300
If a moving object doubles its speed, how much more momentum does it have?
What is momentum doubles?
300
Two wheels roll side-by-side without slipping, at the same speed. The radius of wheel 2 is twice the radius of wheel 1. The angular velocity of wheel 2 is:
What is half the angular velocity of wheel 1?
400
This is the value that can be found from the area under a velocity-time graph.
What is displacement?
400
You are lifting a 10 kg block straight up at a constant speed of 10 m/s. How much force are you exerting on the block? Use g = 10 m/s^2
What is 100 N?
400
In order for work to occur, these two things must happen.
What is forces applied over a distance?
400
If a moving object doubles its speed, how much more kinetic energy?
What is kinetic energy will increase by four times?
400
The angular velocity of a rotating wheel increases 2 revolutions per second every minute. The angular acceleration, in rad/s^2, of this wheel is:
What is π(pie)/15?
500
This is how long it will take a 5 kg object to hit the ground if dropped from rest at a height of 12.5 m. You can ignore air resistance.
What is What is 1.60 seconds?
500
The magnitude of the net force when it falls fast enough to encounter an air resistance of 41.7 N is?
What is 0N?
500
How much work is done by an applied force to lift a 15-Newton block 3.0 meters vertically at a constant speed?
What is 45 Joules?
500
When the velocity of an object is quadrupled, by what factor is its kinetic energy changed?
What is 16?
500
The angular velocity in rad/s of the minute hand of a watch is:
What is π(pie)/1800?