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WorksheetsMartin T study quizzz galabiz
Total questions: 13
Worksheet time: 7mins
A student suspends two inflated balloons from the ceiling. The student wants to show a field exists between the balloons exerting forces on each other even though the balloons are not in contact
which action will demonstrate that the balloons can either attract or repel each other?
Push the balloons towards each other to generate a magnetic field
place a magnet between the balloons to generate a magnetic field
cover one balloon with a cotton cloth to generate gravitational field
rub both balloons with a wool rag to generate an electric field.
A bar magnet and Earth both have magnetic fields. Which diagram correctly represents the magnetic field lines of a bar magnet and Earth?
Letters W-Z in the diagram represent the locations that Mike stopped to rest as he climbed the mountain.
In which location was the gravitational force the weakest between the center of the Earth and Mike?
location W
location Y
location X
location Z
A student performs an activity using a sheet of paper, a magnet, and a steel ball. The image shows the setup.
The student observes that the steel ball sticks to the magnet even though the paper is between them. Which factor leads to the attraction of the ball to the magnet?
The magnet exerts a force on the ball.
The paper exerts a force on the ball, which pulls the ball toward the magnet.
The magnet attracts the paper, which pulls the ball.
The size of the ball attracts the ball toward the magnet.
A student hangs a pith ball from a stand using thread and rubs a glass rod with a silk cloth. Upon bringing the glass rod near the pith ball, the student observes that the pith ball is attracted toward the glass rod, as shown.
How can the observation best be explained?
The glass rod exerts a gravitational force, causing it to attract the pith ball.
An electric field exists between the glass rod and the pith ball, causing the attraction.
The pith ball exerts a repulsion force toward the glass rod, causing the attraction.
lectric charges in the string transfer to the pith ball, causing it to attract the glass rod.
A student lists the similarities between Earth’s magnetic field and the magnetic field of a bar magnet.
Which similarity(ies) did the student list correctly ?
Only 1
1 and 2
Only 3
1 and 3
A student wants to demonstrate the size of a magnetic field to a friend. Which activity should the student perform?
Suspend a magnet freely using a thread, and compare its alignment with a compass.
Sprinkle iron filings around the magnet, and observe the pattern in which the iron filings arrange themselves
Cut a magnet in half, and bring the halves together to show they attract each other.
Rub an iron bar with a magnet, and bring the bar close to the magnet to show that they attract each other.
A student attaches two identical balloons (X and Y) to the ceiling using a nylon thread so that the balloons are near each other. The table shows the observations from three different activities performed with the balloons.
What evidence supports that there is a non-contact force between the balloons?
The balloons are not in contact and tend to move away from each other when both are rubbed with wool
The balloons are not in contact and tend to move away from each other when both are rubbed with wool
The balloons are not in contact and tend to move away from each other when both are rubbed with rubber
The balloons are not in contact and tend to move close to each other when both are rubbed with wool.
Which change would increase the magnetic force between these magnets?
moving the magnets closer together
moving the magnets farther apart
placing a piece of glass between the magnets
placing a sheet of steel between the magnets
The magnet on the right is moved towards the suspended magnet on the left. Which statement describes the interactions of the magnets in terms of their magnetic fields?
A repulsive force between the two magnets causes the suspended magnet to swing to the left.
An attractive force between the two magnets causes the suspended magnet to swing to the right.
A repulsive force between the two magnets causes the suspended magnet to oscillate like a pendulum.
An attractive force between the two magnets causes the suspended magnet to oscillate like a pendulum.
Jenna has a cupboard with a door held by a magnet on the doorframe and a steel plate on the door. how can Jenna increase the strength of the magnetic force holding the door so that her cat cannot open it
Add a second magnet to the door frame so that both magnets touch the steel plate.
add a second steel plate to the door so that both plates touch the magnet
reverse the direction of the magnet so that the opposite pole touched the plate
replace the steel plate with a copper plate so a stronger force forms
Which pair of objects will have the greatest force of gravity between them?
objects that are small and far apart
objects that are large and far apart
objects that are large and far apart
objects that are large and close together
use the diagram to answer the question
what will happen to the gravitational attraction force between the objects shown if one of two objects is doubled in size
it will stay the same
it will repel
it will increase
it will decrease
