Things that go fast
Distance/Time
What is the formula for speed?
This is what makes velocity different from speed
Direction
A change in either speed or direction (velocity)
acceleration
Forces that have a net force of 0
Balanced
This is the unit for force
Newtons (N)
The speed of a car that is traveling 120 miles in 2 hours.
What is 60 miles per hour
A ball is rolling towards the northern end of a field. It is traveling at 20 meters in 30 minutes. What is the velocity in meters per hour?
40 m/hr north
if a boat is traveling down lake, what must happen in order for it to be an example of acceleration?
It must change its speed or its direction (or both)
In tug of war, when one side pulls the other side over the line, the forces are...
Unbalanced
When forces are acting on an object in the same direction, the mathematical operation used to determine the net force is what?
addition
This is the formula for Time, based on the formula for speed.
What is Time = Distance/Speed
If someone tells you they are driving to the east side, what other piece of information do they need to provide in order to know the velocity?
speed (rate of travel)
True or False: A car traveling down a winding road, at the same speed, is an example of acceleration.
True
This is the type of force when objects move
unbalanced
two soccer players exert opposite forces on a soccer ball. One player exerts a force of 5 N towards the blue team's goal, while the other player exerts a force of 12 N towards the red team's goal. What is the net force applied on the soccer ball if we ignore friction?
7 N toward the red team's goal
The distance of a bicycle traveling at 20 miles/hour after 30 minutes.
10 miles/hour
This is the amount of time it takes for a satellite to travel 450 km, toward Earth, at a rate of 120 km/s.
3.75 seconds
True or False: Average speed is an indication of acceleration.
True
If two forces are acting on an object, and the direction of applied force is the same, the forces are working....
together
tripping on a rock
unbalanced forces
How long will a trip take (in hours) if you travel 350 km at an average speed of 80 km/hr?
4.375 hours
True or False: Only map directions (north, south, east, west) can be used for velocity.
False
Slowing down is not an example of acceleration.
False
When you jump in the air, this is the force that brings you back down.
Gravity
Sitting in a chair and not moving
balanced forces