WorksheetsMagnetic and Electromagnetic Forces
Total questions: 14
Worksheet time: 7mins
Which of the following is an example of the results of a magnetic force?
Orbit of planets around the Sun
Movement of a compass needle
Particles of dust sticking to a balloon
A turbine rotated by moving water
The primary function of a motor is to convert –
Electrical energy into radiant energy
Radiant energy into useful energy
Mechanical energy into light energy
Electrical energy into mechanical energy
Which action makes use of a magnetic force
A person puts a bank card in an electronic reader to buy an item
A store clerk finds the price of an item by moving the item over a laser light
A parent meausures a child's temperature by toching a thermometer to the child's head
A student measures the mass of a book using a spring scale
The picture shows a balloon and a portion of a wall with a neutral charge. If a student rubs abainst his or her hair, giving the balloon a negaive charge, which image correctly shows how the charges in the balloon and wall will be arranged?
A teacher gives a student a battery, a copper wire, an iron nail, and some iron filings. Using these materials,
what type of force could the student produce?
A magnetic force, but not an electric force
Neither a magnetic force no an electric force
An electric force, but not a magnetic force
Both an electric force and a magnetic force
Which of the following occurs due to an electric force?
An iron nail moves toward a bar magnet after the two are placed close to each other.
A laboratory cart rolls across the floor after it is pushed by a student.
A plastic comb attracts a small piece of paper after it is used to comb someone's hair.
A steel ball falls vertically to the ground after it is released from a height.
A student is asked to describe an example of a magnetic force in everyday life using an object found in the
student's home. Which of the following objects would most likely be best for the student to use?
A battery-operated toy car
A table with a vase on top of it
A refrigerator with objects stuck to the door
A calculator powered by sunlightMamam
Which of the following familiar occurrences is due to magnetic force?
The needle of a compass points towards Earth's North Pole
A person gets a shock from a doorknob after walking across the carpet
Earth is constantly pulling all objects towards its center
Pieces of clothing stick together after being in a clothes dryer
The electric force between two charged spheres can be increased by decreasing the–
Combined mass of both spheres
Distance between the spheres centers
Diameter of the larger of the spheres
Combined charge of both spheres
A charged object exerts a force on another charged object. If the charge on each
object is doubled, the force will becomes−
One quarter of its orignal value
Half of its original value
Double its original value
Four times its original value
Which of the following provides the best evidence for the existence of the strong nuclear force?
The presence of neutrons
The presence of neutrons in the nucleus
The presence of electrons
The presence of protons in the nucleus
Which of the following processes is often cited as evidence for the existence of the weak nuclear force?
Beta Decay
Neutron Decay
Gamma Decay
Alpha Decay
Which of the following statements is true of the strong nuclear force?
It acts over great distances
It repels neutral charges
It holds protons and neutrons together
It is much weaker that gravitational forces
On which scale are gravitational forces dominant?
Atomic
Cosmic
Molecular
Subnuclear
