Kinematics
In the equation, v=at, what does V stand for?
Velocity
The unit for velocity
m/s
As an apple approaches the ground, the potential energy
decreases
An object in motion stays in motion unless acted upon to stop it.
Newton's First Law
20m/s
In the equation v=at, if the object is moving downward, what is the value of a?
9.81m/s2
The unit for distance
meter
Energy of movement is called
Kinetic energy
increase
What is the distance traveled of a car that travels an average of 6 meters per second for 8 seconds?
48m
In the equation d=1/2(vt), what does t stand for?
Time
The unit for acceleration
m/s2
A 2kg ball at 10 meters has ________ potential energy than a ball at 2 meters?
more
What is the force acting on an a 4kg object with the acceleration of 8.0m/s2?
32 Newtons
A stone weighing 5 Newtons falls from a height of 40 meters. What is the acceleration?
If a rocket is shot and is in the air for 20seconds, what is the downward velocity?
981m/s
The unit for Force
Newton
What would have more energy, a 10kg rock traveling 15 m/s or a 5kg rock traveling 20m/s?
10kg rock
If a student with a weight that exerts a force of 500 Newtons on a chair, the chair exerts what force back?
500 Newtons
11,250joules
What is the distance a rocket travels if it's velocity is 981m/s and time is 10 seconds? d=1/2vt
4905m
The unit for energy
Joule
Which visible light wave has the lowest frequency?
Red
You hit a nail with a hammer, the force the nail will exert of the hammer will be (equal, more, or less) as the hammer exerts of the nail.
equal
An object with 10 J of potential energy is lifted to 2 meters. An object with half the weight is lifted to the same height. What is the potential energy of the second object?
5 J