WorksheetsField Forces Worksheet 1
Total questions: 35
Worksheet time: 28mins
Magnetic field lines are closest together at the __________.
Which of the two below result in an attractive force?
A positive charge and a negative charge
Two negative charges
Two south poles
A north pole and a south pole
Two postive charges
Static electricity is the buildup of charges between two objects. What best explains why a balloon is attracted to hair when the two have been rubbed together?
The balloon and hair both have positive charges
The balloon and the hair both have negative charges
The balloon and the hair both have neutral charges
The balloon and the hair both have opposite charges
Two bar magnets are held close together. They are released and allowed to move freely. The bar magnets quickly come together. Which best explains why this happens?
The poles facing one another are both south poles
The poles facing one another are both north poles
The poles facing one another are opposite poles
One magnet was bigger than the other
Frederick sets paper clips out on a table. He then takes a magnet, places it directly beneath the paper clips under the table, and moves the magnet. He finds that the paper clips move with the magnet. Why does this happen?
Magnetic force is a repellant force
Magnetic forces act on wood, like in the table
The paper clips are feeling the gravitational force of the magnet
Magnetic forces act at a distance, even betwewn objects
Surrounding each magnet is an invisible force field called
Gravity
A magnetic field
An electric field
The Force
In an electromagnet, coils of wire are wrapped around a magnetic object to generate a magnetic field. What the is relationship between number of coils and the strength of the magnetic field?
The more coils an electromagntic has, the stronger the magnetic field
The more coils an electromagntic has, the weaker the magnetic field
The larger the metal object, the stronger the magnetic field is
There is no relationship between number of coils and the strength of a magnetic field
To decrease the strength of a magnetic field around an electromagnet, we must
increase the number of coils
increase the size of the iron core
decrease the size of the iron core
decrease the number of coils
What is the cause of electricity?
Magnetism
Gravity
Moving electrons
Lightning
The charge on the left is ____ and the charge on the right is ___
positive ; positive
negative ; negative
negative ; positive
positive ; negative
Name the three types of non-contact forces we have learned about
positive
negative
neutral
electric
magnetic
gravitational
electric
neutral
magnetic
magnetic
gravitational
positive
The type of forces we have learned about means they do not need to touch to affect the field around them. This is called:
non-contact
neutral
north/south pole reversation
invisible forces surrounding objects
A field is defined as:
repulsion of forces
noticeable pull between two objects
invisible and extends through space
Gravitational forces affect anything with:
charges
mass
gravity
sweaters
In our experiment with magnets we could feel the force of:
North pole vs south pole
positive and negatives
attraction and repulsion
This force increases with mass, decreases with distance, and points towards the center of the object
Reverse magnetic electrical forces
Electrical Force
Magnetic Force
Gravitational Force
Mass
The amount of matter an object contains
The weight of an object in a vacuum
The volume of an object
The density of an object
Balanced Forces
Forces that cancel each other: net force is zero
Forces that cause an object to accelerate
Forces that are unequal in magnitude
Forces that act in the same direction
Fields
A type of plant growth area.
A region of space where forces are exerted on objects at a distance.
An area designated for sports activities.
A section of land used for farming.
Magnetism
A force that can attract or repel objects with magnetic material like iron.
A type of energy that can only attract objects.
A phenomenon that occurs only in electric fields.
A force that can only repel objects with magnetic material.
Static Electricity
A buildup of charge that can be easily transferred between bodies.
A type of electricity that is always flowing.
Electricity that can only be generated by batteries.
A phenomenon that occurs only in wet conditions.
When electrons are transferred from one object to another without direct contact, this is called ___________.
induction
conduction
radiation
reduction
Grounding an object helps create a _______________ charge.
positive
negative
neutral
Conductors, like metals, allow ____________ to move more freely.
protons
electrons
neutrons
The transfer of electrons through direct contact is known as _____________.
conduction
induction
grounding
a field
The only particles that move freely amongst atoms are _____________.
protons
neutrons
electrons
How does distance affect gravitational force?
Gravitational force increases as the distance between two masses increases.
Gravitational force remains constant regardless of distance.
Gravitational force decreases as the distance between two masses increases.
Gravitational force is only affected by the mass of the objects, not the distance.
