Force STAAR Review

Students investigate force. The masses they use begin at rest on the ramp. The setup the students use is shown. 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-PS2-1

NGSS.MS-PS2-2

Students design an experiment to determine how much force is needed to move blocks of wood of different masses slowly across a lab table. Which procedure should students include in their design?

• Conduct five trials, using a different scale to pull each block of wood

• Conduct five trials, pulling a different side of each block each time

• Conduct five trials, using a different table for each trial

• Conduct five trials, pulling each block of wood in the same way for each trial

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

The diagrams show two trials of an experiment in which a spring scale was used to measure force. This experiment can be used to determine —

• how mass affects the force needed to move objects

• how force affects the mass of two objects

• how the force used to pull a dictionary affects the mass of a box of marbles

• how the mass of a box of marbles affects the mass of a dictionary

Tags

NGSS.MS-PS2-2

Students drop the same heavy ball onto identical blocks of soft clay from different heights. For each height they measure the depth of the dent the ball makes in the clay. Why is the depth of the dent different in each trial?

• The size of the ball changes.

• The material of the ball changes.

• The mass of the ball when it hits the clay changes.

• The force of the ball when it hits the clay changes.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A student uses a spring scale to pull a 50-gram block horizontally across a wood desk. Then the student pulls the block the same distance across surfaces of carpet, sandpaper, and glass. Which question is this investigation most likely designed to answer?

• How do blocks of different sizes react to force?

• How do different surfaces affect the amount of force needed to move a block?

• How do blocks affect spring scales?

• How does the mass of a block change when it is pulled across a desk?

Tags

NGSS.MS-PS2-2

Students designed an investigation to determine how far a ball would travel when released at the top of two ramps of different heights. They set up the investigation shown below. What should the lab team do to improve their investigation?

• Use Ball A on both ramps.

• Use Ramp 2 for both balls.

• Use Ramp 1 for both balls.

• Place Ball B on Ramp 1 and Ball A on Ramp 2.

Tags

NGSS.MS-PS2-2

An engineer wants to test the ability of 3 materials to resist cracking. She drops a heavy metal ball from 1 meter above each test material. She can improve the investigation by—

• dropping a different size ball for each material.

• using materials that are the same thickness.

• testing only one material.

• using a feather instead of a metal ball.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

The diagrams show two trials of an investigation in which the distance a ball

rolls when released on cardboard ramps is measured. This investigation can be used to determine—

• how a ball’s mass affects distance it rolls.

• how the material a ramp is made of affects the distance a ball rolls.

• how a ramp’s angle affects the distance a ball rolls.

• how a ball affects a ramp’s height.

A student is investigating the effect of a sphere’s

mass on the height it reaches when released From a spring launcher. What is the tested variable in this investigation?

• The ball’s volume

• The spring launcher’s height

• The ball’s mass

• The length of the ruler

Tags

NGSS.MS-PS2-2

In which direction will the ball likely go after hitting the wall?

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Tags

NGSS.MS-PS2-1