A speedometer in a vehicle would best exemplify this type of speed.
instantaneous speed
100
A force is described by its strength and its _______.
direction
100
The SI unit for measuring distance/length is:
meter
100
This is the unit used to measure force.
Newton
200
A place or object used for comparison to determine if something is in motion is called
A reference point
200
_____ is a change in an object's velocity over time.
Acceleration
200
Name two of the three types of contact forces.
Possible answers:
* Applied Force
* Normal Force
* Friction
200
Write the formula for speed.
s= d/t
*speed is equal to the distance traveled divided by the amount of time it took
200
Movement can only happen when forces are _______.
Unbalanced
300
The mass of an object is a measure of how much ____ it contains.
Matter
300
If an airplane is traveling 925 km/h heading southwest, this is describing its _______.
Velocity
300
This contact force occurs when two surfaces rub against each other in opposite directions.
Friction
300
In a bicycle race, Ashley's starting speed is 1 m/s. Within 9 seconds, she is traveling at 4 m/s. What is her acceleration?
Acceleration = (Final speed - Initial speed) / Time
(4 m/s - 1 m/s)/ 9 s=
3/9 = 3 m/s^2
300
What variable does the y-axis represent on a graph?
Dependent variable
400
This type of speed refers to a steady increase or decrease in the distance traveled in a certain amount of time.
Hint: On a graph, it is represented as a diagonal line.
Constant speed.
400
If a motorcyclist travels 36 kilometers in 3 hours, what is his average speed?
12 km/h
400
This law states that any object in the universe with mass will attract other objects with mass. What is the name of this law and who proposed it?
The law of universal gravitation, Sir Isaac Newton
400
During a game of tug-of-war the red team exerted 14 N of pulling force and the blue team exerted 16 N of pulling force. Which team won, and what was the net force?
The blue team won; there was a net force of 2 Newtons.
400
Bianca wants to do an experiment testing how different lights effect plant growth. She uses 3 different color lamps and a regular lamp and measures the height of each plant after 2 weeks. Identify the independent and dependent variables and the control group.
I.V.- different color lams
D.V.- height of the plants
Control- the plants with the regular lamp
500
To know the velocity of an object, you must know its speed and its _____.
direction of motion
500
Draw a graph that shows no movement. (you do not need to include numbers, but DO include time and distance)
A graph with a horizontal line.
500
Draw a free-body diagram illustrating two people pushing a box. One person is exerting 12 N, the other 8 N. What is the net force?
Net force: 20 N
500
If you are walking down a hill, then up a hill, then down again, describe your travels using the words positive acceleration and speed.
Several answers possible.
500
Explain a scenario that describes negative acceleration (deceleration).