If friction did not exist could you ride a bicycle? Why or why not?
No. Without friction the tires would just slide around and would not even move. Also, brakes wouldn't work.
200
What is position?
the location of an object
200
What is gravity?
A force that pulls two objects together.
200
What is the trough?
The lowest point in the wave.
200
Name the surface that would have the least amount of friction.
dirt
grass
ice
rocks
200
If you were playing basketball name a force that is involved when shooting a basketball through the net.
options
Shooting is push
gravity pulls ball through the hoop
friction allows the you to stand still while shooting
300
What is distance?
How far it is from one place to another
300
What is weight?
The measure of the force of gravity on an object.
300
What is a wave?
A disturbance that travels through matter or space.
300
Which object would take the least amount of force to move.
a book
a pencil
a table
a truck
300
Ms. Tanya and Ms. Donato run 2 miles. It takes Ms. Tanya 1.5 hours to finish. It takes Ms. Donato 1 hour to finish. Who has the greater speed and how do you know?
Ms. Donato has the greater speed because it took her less time to travel the distance than Ms. Tanya.
400
Mention three examples of different units that are used to measure distance..
a force that happens when two objects rub together
400
What is wavelength?
The distance from one point of one wave to the point on the next wave.
400
There is a book on the table. You are pushing the book left. At the same time, your friend is pushing it right. What is the net force on the book?
your friends push
your push
your push plus your friend's push
the weight of the book
400
Micheal is going to do an experiment. He is going to compare the speed of a turtle and the speed of the rabbit. What should he use to measure the speed?
Something to measure the distance (maybe meter stick)
stopwatch
500
What is speed?
speed is the distance an objects moves in a certain period of time
500
How can forces affect the motion of an object?
Forces can make objects start moving, stop moving, speed up, slow down, or change direction.
500
Which wave is a back-and-forth wave?
sound waves
500
How do scientist figure out the wavelength of a wave?
by measuring the height
by measuring the depth
by measuring the distance from one crest to the other
by measuring the waters temperature
500
Suppose you are measuring waves. One of the waves measure 5 ft. the other measures 3 ft. Which wave has more energy and how do you know?
The wave that is 5ft from crest to trough because the larger the distance from those 2 points, the larger the distance, the more energy it carries.