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WorksheetsChapter 5; FORCES
Total questions: 28
Worksheet time: 14mins
Another name for the Force of gravity is ?
mass
gravitational constant
weight
kilograms
If you have an object that is suspended, the force that is used to hold the object is the ___________ force.
frictional
tension
normal
gravitational
If you have the weight of an object in Newtons, how can you find its mass on Earth?
multiply by 9.8
divide by 9.8
multiply by 0.45 and then 9.8
multiply by 0.45 and then divide by 9.8
In a free-body diagram you must pay attention to the magnitude and the ___________ of the arrows to determine the ___________ force.
direction, normal
length, applied
length, normal
direction, net
An instrument to measure weight is called a what?
balance
weigher
spring scale
Newtonimer
Which of the following DOES NOT CHANGE depending on the "g" force.
weight in pounds
weight in Newtons
weight in ounces
mass
On which planet of the ones listed below would you have the least weight?
Earth
Mars, where g = 3.7 N/kg
Jupiter, where g = 23.1 N/kg
Moon, where g = 1.6 N/kg
Which of the following affects the speed of a moving object the most?
drag
air friction
rolling friction
sliding friction
Forces always occur in ___________ and act on what?
multiples of 3, separate objects
multiples of 2, separate objects
multiples of 3, the same object
multiples of 2, the same object
For movement to occur?
static friction must equal more than 0 Newtons
rolling friction must equal more than 0 Newtons
there must be a net force = 0 Newtons
there must be unbalanced forces
If forces are unbalanced ?
net force = 0 kilograms
net force = 0 Newtons
net force = less than 0 Newtons
net force = NOT 0 Newtons
Which of the following is correct?
To find kilograms you multiply N/kg by Newtons
To find Newtons you divide N/kg by kilograms
To find Newtons you multiply N/kg by kilograms
To find N/kg you multiply kilograms by Newtons
Which of the following is NOT true?
The net force must always be less than any of the 4 forces acting on a moving object.
The net force of a moving object is always in the frictional force direction.
The net force of a non-moving object is 0 Newtons.
The normal force of a moving object equals the weight of the object.
What percentage of your body should your backpack be less than?
5
10
15
12
Which item is used to decreasing friction?
thicker tread on tires
cleats on your sports shoes
powder on your hands while playing pool
sand on a snowy road surface
Where would you have the most mass?
On a planet that has a larger radius and mass
On a planet that has a larger radius and less mass
On a planet that has a smaller radius and mass
None of these
Which of the following DOES NOT decrease friction?
Larger surface area of either of the touching surfaces
Smoother surfaces of the touching surfaces
Using ball bearings or graphite
None of these
The downward force acting on an object is what?
Normal force
Force of gravity
Tension force
Applied force
The force that OPPOSES applied force is called what?
Frictional force
Normal force
Tension force
Gravitational force
Which of the following is true for an object that is in motion?
Gravitational force equals 0 Newtons.
Applied force equals frictional force
Forces are balanced
The net force does not equal zero
Which of the following force pairs are correct?
gravitational and applied
applied and normal
frictional and applied
net force and applied
Which of the following is true regarding tension?
It opposes frictional force
It opposes the normal force
It is in the same direction as gravity
It opposes gravity
Which of the following is true regarding air resistance?
It opposes the normal force
It is increased in a vacuum
It opposes the gravitational force
It opposes the applied force
If you double an objects mass while keeping the "g" force the same, what happens to its weight?
It decreases by 1/2
It increases by 1/2
It doubles
It is uneffected
If you move an object to a planet that has 1/2 of the "g" force, what will happen to the objects weight?
It decreases by 1/2
It doubles
It increases by 1/2
It is uneffected
If you have an objects weight in pounds, how would you find its weight in Newtons?
(1 kg = 2.2 pounds)
Divide by 2.2 and then divide by 9.8
Divide by 2.2 and then multiply by 9.8
Multiply by 2.2 and then divide by 9.8
Multiply by 9.8
Which of the following is true for an object in motion?
Net force = applied force
Net force is greater than all other forces
Applied force does NOT equal gravitational force
Forces are not balanced.
Placing an object in a vacuum effects an objects ?
mass
speed
weight
none of these
