Unit 6 Test Prep

According to Newton, which of the following is true about an object in motion?

• An object in motion will remain in motion at the same velocity unless it is acted on by an unbalanced force.

• An object in motion will remain in motion at the same velocity unless it is acted on by a reaction force.

• An object in motion will remain in motion at an increasing velocity when friction is present.

• An object in motion will eventually stop regardless of the forces applied.

According to Newton, which of the following is true about an object at rest?

• An object at rest can never remain at rest.

• An object at rest will remain at rest unless it is acted on by a balanced force.

• An object at rest will remain at rest unless it is acted on by an unbalanced force.

• An object at rest will always remain at rest regardless of the forces applied. 

What is Newton's 1st Law often referred to as?

• The Law of Inertia

• The Law of Acceleration

• The Law of Gravity

• The Action-Reaction Law

Newton's 2nd law states: Force = mass times....

• speed

• friction

• gravity

• acceleration

Tags

NGSS.MS-PS2-2

How do you calculate net force acting on an object, if all the forces acting on an object are the same direction?

• You add all of the forces together, and the sum is the net force.

• You multiply the forces by each other and the product is the net force.

• You divide the forces by each other and the product is the net force.

• You subtract the smallest force from the greatest force and the difference is the net force.

Tags

NGSS.MS-PS2-2

determine the motion and direction of the object in the free-body diagram.

• balanced forces; no motion

• unbalanced forces; moving left

• unbalanced forces; moving right

• unbalanced forces; no motion

Tags

NGSS.MS-PS2-2

A bus is driving down River Road. If the bus comes to a sudden stop, all the people inside will continue to move forward. Which piece of evidence best supports WHY this will happen?

• The passengers’ kinetic energy drops to zero when the bus stops moving.

• The seats are pushed backward into the passengers.

• There is no seatbelts, so the passengers can have a change in motion.

• The passengers have inertia, which causes them to continue moving forward.

Ms. Picolo wonders, "How does the type of sugar used affect the chewiness of a cookie?" What would her independent variable be in this experiment?

• type of sugar

• type of flour

• chewiness of the cookie

• oven temperature

Ms. Picolo wonders, "How does the type of sugar used affect the chewiness of a cookie?" What would her dependent variable be in this experiment?

• type of sugar

• type of flour

• chewiness of the cookie

• oven temperature

Tags

NGSS.MS-PS1-2

Ms. Picolo wonders, "How does the type of sugar used affect the chewiness of a cookie?" What would her controlled variable be in this experiment?

• type of sugar

• type of flour

• chewiness of the cookie

• oven temperature