Show:
Motion
Action and Reaction
Gravity
Friction
More Motion
100
A measure of how far something travels in a certain period of time.
What is speed?
100
The tendency for an object to stay at rest or in motion.
What is inertia?
100
A force that acts to pull pairs of objects together.
What is gravity?
100
A force that resists the movement of one surface past another surface.
What is friction?
100
The rate at which velocity changes.
What is acceleration?
200
A measure of speed in a certain direction.
What is velocity?
200
A push or pull.
What is a force?
200
The amount of matter an object has.
What is mass?
200
Friction caused by gas molecules hitting an object.
What is air resistance?
200
When objects reach a constant velocity, the acceleration is at this.
What is zero?
300
Two ways to change velocity.
What is speed and direction?
300
The opposing force to action.
What is reaction?
300
A measure of the force that gravity exerts on an object.
What is weight?
300
If you want to reduce air resistance, you need to do this.
What is streamline?
300
A meteor burns because of this.
What is air resistance?
400
If you know the speed and distance you can find this when you travel.
What is time? Speed = distance / time Time = speed / distance Distance = speed x time
400
Forces always work in this.
What is pairs?
400
Two objects will have greater attraction or gravitational pull when they are this.
What is closer?
400
When you slide to third base, friction can cause this to you.
What is heat you up, wear out clothes, slow you down, or stop you?
400
Name two ways a biker can cause less drag.
What is wear tight clothes, put head down, keep arms and legs in?
500
If you travel at a velocity of 25 km/hr north, you need to do this to be at the same velocity.
What is going the same speed and direction?
500
If the action force is pushing, the reaction force is this.
What is moving backwards?
500
An object falling accelerates because of this.
What is gravity?
500
When an object is dragged, there is a lot of friction between the object and this.
What is air?
500
This is the main difference between speed and velocity.
What is direction?