Cards in this guide (16)
What is kinetic energy
Kinetic energy is the energy that an object has due to its
motion or movement. For instance if a car drives into a wall the
energy of its movement is what destroys the wall, That energy is
kinetic energy.
Note: Heat is also a form of Kinetic energy because heat is the
movement (vibration energy) of atoms or molecules.
If it takes 100 N to move a box 5 meters what is the work done on the box
What factors determines the strength of the frictional force between two surfaces
how hard the surfaces push to gether the types of surfaces
involved
An inclined plane makes work easier by increasing the distance and decreasing the
Static friction is the friction force that must be overcome to keep an object moving at a constant speed
Does a cart loaded with groceries have more inertia because it has more mass than an empty cart
Yes, a cart loaded with groceries has more inertia because it
has more mass than the empty cart. The inertia of any object is
determined by the amount of its mass.
Microwelds are formed where
bumps from two surfaces come into contact.
Is it bad if you have a heavy period on one month and a light one the next month
No it is not bad, as some ladies have a heavy period for one
month and then a light one or they may have two heavy periods and
then one light one also.
Which of the following is an example of a pull
Reeling in a fish with a fishing pole
R1CO95- Playing Tug Of War. ^_^
The force needed to overcome kinetic friction is usually less than that needed to overcome static friction true or false
If you add together all of the forces exerted on an object and get a non-zero value this is called
Velocity is the change of speed andor direction of an object
Not exactly. Velocity is the speed and direction of an object's motion.
If either speed or direction changes, then the change is the object's 'acceleration'.
When a waves moves from a less dense medium to a denser one most of the wave energy is refracted
In a collision a vehicle that rebounds off the object it trikes experiences less force than if it crumples assuming the time is the same in both situations
How long can you car be parked along freeway before towed
What law states that energy cannot be created or destroyed
Law of energy conservation. It shows that energy cannot be
created or destroyed
