Amplify Force/Motion EOM Review 23-24

A student reads his paper on friction to the class. Which statement should he include in his paper if he wants to present accurate information?

• Friction increases mechanical advantage

• Friction makes movement of an object easier.

• Friction opposes the direction of movement.

• Friction reduces the amount of work used to move an object.

If an unbalanced force acts on a stationary object, the object will...

• remain stationary

• move away from the force

• accelerate in the direction of the force

• accelerate in the opposite direction of the force

Tags

NGSS.MS-PS2-2

If no force is being applied to a stationary object, the object will...

• remain stationary.

• accelerate in the direction of the force.

• move at a constant speed in the direction of the force.

• accelerate in the opposite direction of the force

Tags

NGSS.MS-PS2-2

A brick is resting on a level, smooth surface. When a student applies a horizontal force of 5 N to the brick, the force of friction on the brick is also 5 N. Which statement BEST describes the effect of these two forces on the brick?

• The net force on the brick is 0 N, and the brick begins to move.

• The net force on the brick is 0 N, and the brick remains at rest.

• The net force on the brick is 10 N, and the brick begins to move.

• The net force on the brick is 10 N, and the brick remains at rest.

Tags

NGSS.MS-PS2-2

Which statement best explains why a car that is rolling on a level surface will eventually come to a stop?

• Frictional forces oppose the motion of the car.

• The natural state of an object is to be at rest.

• Forward motion slowly runs out as energy is expended.

• Inertia acting on an object will dissipate.

Tags

NGSS.MS-PS2-2

Complete the sentence to match your observations: When you exert a stronger force on an object, you will see ________ change in velocity as compared to exerting a weaker force on the same object.

• a greater

• a weaker

• the same

Tags

NGSS.MS-PS2-2

Which of the following is NOT TRUE about friction:

• Friction is a force that acts in the opposite direction of motion.

• Friction slows objects down.

• There is no friction on earth.

• Friction on carpet is greater than friction on a bare floor.

Speed in a particular direction

• force

• velocity

• motion

Tags

NGSS.MS-PS3-1

Which of the following pictures models Claim 1: The thrusters caused the pod to move in the opposite direction.

• 
• 
• 
• 

Tags

NGSS.MS-PS2-1

Which of the following models claim 2: The thrusters only slowed the pod, it didn't stop. The pod hit the space station, which made it bounce and move in the opposite direction.

• 
• 
• 
• 

Tags

NGSS.MS-PS2-1