Force and Motion Review

Which question about the effect of force on an object could be answered by conducting a classroom experiment?

• What type of surface produces the most friction?

• How does gravity affect the movement of comets?

• What evidence supports the theory of black holes?

• How does air resistance cause airplane failure?

Tags

NGSS.MS-PS2-2

Some students were investigating which surfaces would allow a ball to roll the farthest. Which of the following would be essential in their investigation?

• Stopwatch, meter stick, calculator, soccer ball, 4½-foot–tall student

• Grassy field, gym floor, concrete sidewalk, soccer ball, meter stick

• Soccer ball, bowling ball, beach ball, stopwatch, meter stick

• 4-foot-tall student, 4½-foot-tall student, 5-foot-tall student, soccer ball, meter stick

Tags

NGSS.MS-PS2-2

Picking up a heavy box is much more difficult than putting it down. What is a likely explanation for this?

• Pushing force is more difficult to accomplish than pulling force.

• The force of gravity acts against you when you try to push something to the ground.

• The action is less difficult because nothing is pulling the object toward the ground.

• The force of gravity is pulling the box toward the ground which makes the action of putting the box down easier to do.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

The force of friction was less on the left so the box moved to the right. What can be said about the effect of the force being applied by the above student on the left?

• The force of magnetism was greater on the left so the box moved to the right.

• The pull of gravity was greater on the right so the box moved to the right.

• The pushing force was greater on the left so the box moved to the right.

• The force of friction was less on the left so the box moved to the right.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Some students are designing an experiment to test the effect of force on an object. The force they are testing is friction. The students will investigate how far a car will slide when rolled across surfaces with different textures. The cars all have equal masses. Which of the following experimental procedures would be the best one for the students to use to conduct the above investigation?

• First, create a ramp for each of the textures to be tested. Then, create a table to record your data. Next, roll each car down each ramp one time. Measure the distance the car traveled, and record the measurement in your table.

• First, create a ramp for each of the textures to be tested. Make sure that all the ramps are the same height and length. Next, roll each car down each ramp three times. Each time, measure the distance the car traveled.

• First, create a ramp for each of the textures to be tested. Make sure that all the ramps are the same height and length. Then create a table to record your data. Next, roll each car down each ramp three times.

• First, create a ramp for each of the textures to be tested. Make sure that all the ramps are the same height and length. Then create a table to record your data. Next, roll each car down each ramp three times. Each time, measure the distance the car traveled, and record the measurement in your table.

Tags

NGSS.MS-PS2-2

A teacher did a demonstration for her class. She found the mass of a baseball and a crumpled piece of paper. She then held both at a height of 1 meter above the table top. She dropped both at the same time. The students wrote about the demonstration, shown on the journal pages in the illustration below. According to the above information, which student has written a testable hypothesis?

• Allison

• Ben

• Christy

• David

Tags

NGSS.MS-PS2-4

A student drew a maze on a piece of cardboard. He

challenged another student to maneuver a paperclip successfully through the maze to the stack of papers by moving a magnet under the cardboard. According to the information and image shown above, what

force was the student demonstrating?

• The insulating property of cardboard

• The attractive force of magnetism

• The pulling force of gravity

• The resisting property of friction

Tags

NGSS.MS-PS2-5

A trebuchet can launch an object a very far distance. When

the rope is cut, the counter weight will be pulled towards the ground,

causing theobject on the other end of the trebuchet to

launch.

A student designed an experiment to determine which ball

would go the farthest using the trebuchet. The student used 3 balls and 3 counter weights, each with a different mass. What should the student do to improve the experiment?

• Use the same ball for each trial

• Use the same counter weight for each trial

• Change the length of the rope for each trial

• Use balls with different size but the same mass for each trial

Tags

NGSS.MS-ETS1-1

NGSS.MS-PS2-1

NGSS.MS-PS2-2

The diagram below shows a lamp system. Which type of energy will a person use to pick up the lamp

cord and plug it into the wall socket?

• Electrical energy

• Light energy

• Mechanical energy

• Sound energy

Tags

NGSS.4-PS3-2

Windmills use moving air to turn their blades. The moving blades create energy that is used for pumping water, grinding grain, and generating electricity. A windmill uses the same type of energy as —

• a solar panel powered by light energy

• an iron powered by thermal energy

• a fan powered by electric energy

• a pinwheel powered by mechanical energy

Tags

NGSS.MS-PS3-5