WorksheetsChapter 5 Lesson 1 What are Forces?
Total questions: 32
Worksheet time: 8hrs 0mins
The force of attraction between any two objects
gravity
force
friction
A push or pull that acts on an object.
force
friction
gravity
The force that results when two materials rub against each other.
force
gravity
friction
A force can make an object slow down or stop.
true
false
What causes an object to change direction?
A force
A tree
The sun
What would cause a soccer ball to slow down as it moves over the ground?
air resistance
friction
nothing it will keep going
A force that requires two pieces of matter to touch is called a (a) .
What are some forces that would affect a ball rolling down a hill?
More than one answer
graity
friction
air resistance
Electric forces act between objects are electrically charged.
true
false
Magnets will pull strongly on some objects made of
More than one answer
iron
cobalt
nickel
A magnet only has two north poles.
true
false
Oppositely charged objects are attracted to each other and tend to move toward each other.
true
false
The rate at which the speed or the direction of motion of an object changes over time.
acceleration
uniform motion
inertia
True or False
Inertia is the tendency of an object to resist any change in motion.
true
false
True or False
Uniform motion is when the speed and direction change.
True
False
True or False
You need more force to throw a bowling ball than a softball.
true
false
When an object speeds up, slows down, or changes direction its_______ changes.
area
motion
A cup sitting on a table is in uniform motion.
True or false
(a)
Newton's first law of motion states
The more mass an object has the more force that is needed. F=MxA
That an object will stay in uniform motion unless a net force acts on the object.
For every action there is an opposite or equal reaction.
Which object would have the least amount of inertia?
quarter
5 lb weight
volleyball
Newton's second law states that
for every action there is an equal or opposite reaction
the greater the mass of the object, the smaller its change in motion will be for a given force.
an object will stay in uniform motion unless a net force acts upon that object.
Isaac Newton's third law of motion states that when an object exerts a force on a second object there will be an equal or opposite force on the first.
true
false
Force is the product of mass and acceleration. (F=MA)
true
false
Force is measured in
yards
inches
newtons
What can a force do?
all of the above
change the direction of the motion
start a motion
stop a motion
Friction and gravity are both examples of a force.
true
false
You hit a wall with a stick. The equal but opposite reaction is
the wall pushes against the stick
the wall pushes against you
the stick pushes against you
you push against the stick
A person is pushed forward into their seat belt when the car stops quickly. Which law is this?
2 and 3
3rd
2nd
1st
An object will always move in the direction of the _____force.
larger
smaller
equal
Which type of force(s) will cause a change in an object's motion?
gravity
speed
unbalanced force
balanced force
If an object is at rest (not moving) the forces acting upon it are
balanced
unbalanced
weak
An object will not have any inertia if it is____?
accelerating
moving in a circle
in space
all objects have inertia
