Past Quiz Questions
gravity
Electrostatic Charging
electromagnetism
100
A student is investigating with magnets. The student uses a bar magnet, a plastic ruler, and a paper clip to perform her investigation. The student places the bar magnet at different distances from the paper clip along the ruler and observes if the paper clip is attracted to the magnet. Her set up and results are shown.
Which argument can the student make using the evidence in her table?
Responses
Magnetism depends on the materials of the objects.
Magnetic fields are strongest at the poles of the magnet.
Magnetic fields exist between objects that are not in contact.
Magnetism increases as the distance between objects increases.
Magnetic fields exist between objects that are not in contact.
100
Noncontact attractive force that exists between all objects that have mass
Gravity
100
Besides gravity there are other noncontact forces....
electricity and magnetism
100
what happens when two north pole magnets are brought together
the magnets repel
200
A student claims that gravitational fields exist between objects that are not in contact with each other. She creates a diagram of two figures. The width of the arrows in Figure A and Figure B represent the strength of the gravitational attraction between two objects.
The student claims the gravitational force is greater between the objects in Figure A. Which argument best supports her claim?
Responses
The masses of the objects in Figure A are less than the masses of the objects in Figure B.
The masses of the objects in Figure A are less than the masses of the objects in Figure B.The diameters of the objects in Figure A are greater than the diameters of the objects in Figure B.
The diameters of the objects in Figure A are greater than the diameters of the objects in Figure B.The distance between the objects in Figure A is shorter than the distance between the objects in Figure B.
The distance between the objects in Figure A is shorter than the distance between the objects in Figure B.The surface area of the larger object in Figure A is greater than the surface area of the larger object in Figure B.
The distance between the objects in Figure A is shorter than the distance between the objects in Figure B.
200
gravity is dependent on
Mass and distance
200
What is the only type of charge that can move during charging?
Negative = Neutron
200
The entire region surrounding a magnet is known as the:
magnetic field
300
A student is investigating the distribution of charges in insulators. The student will place an aluminum metal can on top of a foam cup and touch the side of the foam cup with a negatively charged rod. The set up for the investigation is shown in the diagram.
What will MOST LIKELY happen to the electrons when the rod touches the foam cup?
Responses
The electrons will pass to the foam cup but will remain in a localized, positively charged area on the cup where the rod was placed.
The electrons will pass to the foam cup but will remain in a localized, positively charged area on the cup where the rod was placed.The electrons will pass to the foam cup but will remain in a localized, negatively charged area on the cup where the rod was placed.
The electrons will pass to the foam cup but will remain in a localized, negatively charged area on the cup where the rod was placed.The electrons will pass from the foam cup to the aluminum can, and both the foam cup and the aluminum can will become positively charged.
The electrons will pass from the foam cup to the aluminum can, and both the foam cup and the aluminum can will become positively charged.The electrons will pass from the foam cup to the aluminum can, and both the foam cup and the aluminum can will become negatively charged.
The electrons will pass to the foam cup but will remain in a localized, negatively charged area on the cup where the rod was placed.
300
Gravity is a force that works at a distance like
electric fields and magnetic fields
300
Why is that positive charges cannot move?
They are locked inside of the nucleus and the entire atom does not move.
300
if 2 magnets attract what poles are facing each other?
north south
400
Harper touches a negatively charged plastic rod to a rubber ball. How are the negative charges distributed on the rubber ball?
Responses
They move to the bottom surface of the ball.
They are evenly distributed on the inside of the ball.
They are evenly distributed on the surface of the ball.
They stay on the surface where the rod touches the ball.
They stay on the surface where the rod touches the ball.
400
Weight is
the gravitational pull on an object times mass
400
Gillian is investigating the distribution of charge in objects using friction. Gillian gently rubs a rubber balloon on the fur of her pet cat. When she pulls the balloon away from the cat's fur, the fur is attracted to the balloon. Which BEST explains why the fur becomes attracted to the balloon?
Rubbing the balloon along the cat transfers extra protons from the balloon to the cat.
Rubbing the balloon along the cat transfers extra electrons from the cat to the balloon.
Rubbing the balloon along the cat creates extra protons that will stick to both the balloon and cat.
Rubbing the balloon along the cat creates extra electrons that will stick to both the balloon and cat.
Rubbing the balloon along the cat transfers extra electrons from the cat to the balloon.
400
what is the affect of decreasing distance on electromagnet force?
The smaller the distance between two electromagnets, the greater the force.
500
Max combed his hair in the morning. The picture shows what Max observed when he put the comb next to a thin stream of water coming from the faucet.
Which best explains what Max saw?
Responses
The charged comb repelled the neutral water though induction.
The charged comb attracted the neutral water though induction.
The charged comb repelled the neutral water though conduction.
The charged comb attracted the neutral water though conduction.
The charged comb attracted the neutral water though induction.
500
mass and distance affect gravity by
increasing the force of gravity if mass isincreased and distance is decreased, decreasing the force of gravity if mass is decreased or distance is increased
500
A student is investigating how a negatively charged rubber rod affects how charges are distributed on two stainless steel spheres that are touching each other. A diagram that shows two steps of the investigation is shown. Step 1 Place two stainless steel spheres, both on hard rubber stands, in contact with each other. Step 2 Bring a negatively charged rubber rod near sphere 1.
Which diagram for step 2 correctly predicts the distribution of charges on the stainless steel spheres?
500
The table above shows information about pairs of charged spheres. In which pair do the spheres exert the greatest electrical force on each other?
The spheres in Pair Y exert the greatest electrical force on each other compared to the other pairs of charged spheres in the data table, due to the greater charge and the smaller distance