Investigation of Motion Change Dependence on Total Force and Object Mass

Keesha designs an experiment to test the effect of force on the motion of a ball. She uses a rubber band wrapped around the legs of a chair to launch the ball. She discovers that the farther she pulls back with the rubber band, the faster the ball travels. Which conclusion should she draw?

• Increasing the weight of a moving object will increase its speed.

• Increasing the distance an object travels will increase its speed.

• Increasing the force applied to a moving object will increase its speed.

• Increasing the friction on a moving object will increase its speed.

Tags

NGSS.MS-PS2-2

If all of the above blocks are the same mass, which of the following would slide across the surface the fastest as a result of the forces acting on it?

• Block A

• Block B

• Block C

• Block D

Tags

NGSS.MS-PS2-2

The diagram above shows four identical boxes filled with different materials that need to be pushed across the room. Equal force is applied to each box for 15 seconds. Which box will move the farthest after 15 seconds?

• A. Box 1

• B. Box 2

• C. Box 3

• D. Box 4

Tags

NGSS.MS-PS2-2

A spring scale is a tool that measures the strength of force needed to move an object. The force is measured in Newtons (N). A student sets up two spring scales pulling wooden boxes of different masses across a table. Which question is this investigation most likely designed to answer?

• How does mass affect the force needed to move an object?

• How does the surface affect the force needed to move an object?

• How do wooden blocks affect spring scales?

• How does the mass of one block affect the mass of another block?

Tags

NGSS.MS-PS2-2

In Scenario A, a ball is being pushed along by a large force. If the force were suddenly decreased (like in Scenario B), what would happen to the motion of the ball?

• it would speed up    

• it would remain the same

• It would slow down

• it would change direction

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

If all of the above blocks are the same mass, which of the following would slide across the surface the fastest as a result of the forces acting on it? (the arrow size determines the amount of force)

• Block A

• Block B

• Block C

• Block D

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Students investigate force. The masses they use begin at rest on the ramp. The setup the students use is shown in picture. Which change will reduce the amount of force needed to move the masses?

• Decrease the height of the ramp

• Increase the height of the ramp

• Add an additional mass

• Pull the spring scale with two hands

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

What is the acceleration of a 50 kg object pushed with a force of 500 newtons? To solve this problem you must do - 

• 500 ÷ 50

• 50 ÷ 500

• 500 x 50

Tags

NGSS.MS-PS2-2

• Rocket 1

• Rocket 2

• Rocket 3

• Rocket 4

Tags

NGSS.MS-PS2-2

A spring scale is used to pull each of the four objects. Based on the information provided, which object experiences the greatest acceleration when pulled with 8N of force?

• Object R

• Object S

• Object T

• Object U

Tags

NGSS.MS-PS2-2