+
Cards In This Set
| Front | Back |
|
A force is the or that acts on an object.
|
Push, Pull
|
|
Is the following sentence true or false? A force can act to cause an object at rest to move or it can accelerate an object that is already moving.
|
True
|
|
How can a force change the motion of an object that is already moving?
|
Changing the objects acceleration.
|
|
What force causes a 1- kg mass to accelerate at a rate of 1 meter per second each second.
|
1 Newton
|
|
The overall force acting on an object after all the forces are combined is the
|
Net force
|
|
How do balanced and unbalanced forces affect the motion of an object?
|
It causes an object to accelerate or stay the same.
|
|
Is the following sentence true or false? Friction is a force that helps objects that are touching move past eachother more easily.
|
False
|
|
What are the different types of friction?
|
1. Rolling
2. Static 3. Sliding |
|
The friction force that acts on objects that are at rest is.
|
Static Friction
|
|
Why is less force need to keep an object moving that to start the object in motion?
|
As an object is moving it accelerates and doesn't need as much force to keep it going.
|
|
What is the friction for for the following?
1. Static 2. Sliding (or kinetic) 3. Rolling |
1. Walking around
2. Pushing a book along your desk. 3. Inline skates |
|
Is the following sentence true or flase? Fluid friction is a force that opposses the motion of an object through a fluid such as water.
|
True
|
|
Gravity is an force that pulls objects together.
|
Attractive
|
|
Is the following sentence true or false? Earths gravity acts downward toward the center of the Earth.
|
True
|
|
Describe how gravity and air resistance affect the motion of a falling object.
|
Gravity- causes an object to accelerate downwards. Air resistance- act in the direction opposite to the motion and reduces acceleration.
|
