Force, Motion and Variable Review

A controlled experiment is an experiment that______

• is repeated several times

• allows for only one variable to be changed at a time

• includes a data table and a graph

• includes lots of explosions

Which of the following is an example of force being applied to an object?

• ice cubes melting

• Yoda

• an ice cream emoji

• a hockey puck being hit by a stick

What is the "standard" for an experiment?

• The starting condition of each variable used to compare to future tests.

• A graph that shows how the independent variable changed over time.

• A procedure that tells scientists how to set the variables for each trial.

• A set of variables used to predict future trials in an experiment.

Applying a push or a pull to an object always changes its....

• color

• attitude

• force

• motion

Student A pushes on a cart with 500 newtons (N) of force. Student B pushes on the other side of the cart. The cart doesn't move. How much force is Student B applying?

• More than 500 N

• 500 N

• Less than 500 N

• Who has fig newtons?

Which of the following is not a variable in a controlled experiment.

• Independent Variable

• Resistant Variable

• Dependent Variable

• Controlled/Standard Variable

"Does playing violent video games before I go to bed, affect the number of hours I sleep?" What is the dependent variable in this problem statement.

• video games

• mattress firmness

• ambient sounds

• hours of sleep

"Does playing violent video games before I go to bed affect the amount of hours I sleep?" What is the independent variable in this problem statement?

• The amount of hours I sleep

• Playing violent video games before bed

• Not playing violent video games before bed

• The color of my dirty socks

Which of the following graphs shows the relationship, "As the number of paper-clip passengers increases, the distance the paper airplane flies decreases?"

• 
• 
• 
• 

Which force or forces are acting at Position A?

• Gravity only

• Force applied by the string

• Gravity and force applied by the string

• Centrifugal force