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WorksheetsPHYS U4 Quiz REVIEW (Forces)
Total questions: 26
Worksheet time: 2hrs 10mins
_ are pushes or pulls that influence an object’s motion.
forces
kilograms
weight
projectiles
_ is the force of gasses escaping from the bottom of a rocket.
thrust
normal force
gravity
drag
The _____ force is the force of electricity and magnetism.
electromagnetic
strong nuclear
weak nuclear
frictional
gravitational
The _____ force is the force that holds the nucleus together.
electromagnetic
strong nuclear
weak nuclear
frictional
gravitational
The _____ force is the force that holds subatomic particles together.
electromagnetic
strong nuclear
weak nuclear
frictional
gravitational
The _____ force is the force of a fluid pushing on an object.
electromagnetic
strong nuclear
weak nuclear
frictional
buoyant
The _____ force is the force that attracts masses to each other.
electromagnetic
strong nuclear
weak nuclear
frictional
gravitational
The _____ force is the force that allows materials to return to its original shape after being stretched or compressed.
electromagnetic
strong nuclear
buoyant
frictional
elastic or spring
The _____ force is the force between two surfaces that always opposes motion.
electromagnetic
gravitational
buoyant
frictional
elastic or spring
What is the weakest of the four fundamental forces in nature?
Gravity
Electromagnetism
Strong Nuclear Force
Weak Nuclear Force
What is the strongest of the four fundamental forces in nature?
Gravity
Electromagnetism
Strong Nuclear Force
Weak Nuclear Force
Newton's First Law is also known as ___.
the Seatbelt Law
the Universal Law
the Law of Gravity
the External Force Law
Mass is a vector and force is a scalar quantity.
FALSE
TRUE
Which law states that an object's motion will remain unchanged as long as no net external force acts on it?
Newton's First Law
Newton's Second Law
Newton's Third Law
Newton's Law of Universal Gravitation
Which law states that an object’s acceleration is directly proportional to the force applied and inversely proportional to its mass?
Newton's First Law
Newton's Second Law
Newton's Third Law
Newton's Law of Universal Gravitation
Which law states that there is a reaction force for every action force?
Newton's First Law
Newton's Second Law
Newton's Third Law
Newton's Law of Universal Gravitation
Forces that can act over a distance are called ___.
Vector Forces
Line Forces
Field Forces
Contact Forces
Forces that can be applied through direct contact are called ___.
Vector Forces
Line Forces
Field Forces
Contact Forces
Increasing which two factors will increase inertia?
mass
velocity
weight
distance
friction
When the net force is zero and the object is moving at a constant velocity, it’s in _ equilibrium.
static
dynamic
net
total
Which one of these is NOT a force?
mass
weight
gravity
friction
Mass is measured in __ in the Metric System.
kilograms
Newtons
Pounds
g/mL
none of these
Weight is measured in __ in the Metric System.
kilograms
Newtons
Pounds
g/mL
none of these
A person pushes a stroller with a force of 40N. The stroller has a mass of 10kg. What is the stroller's acceleration? a=F/m
4 m/s²
0.25 m/s²
30 m/s²
98 m/s²
none of these
A scientific computer has a mass of 10kg on Earth. How much does the computer weigh on earth? F=mg, g=9.8m/s²
98 N
980 N
0.98 N
0.2 N
none of these
An 80kg astronaut traveled to Mars, where her weight is 297.6N. What’s the acceleration due to gravity on Mars? W=mg
3.72 m/s2
1.63 m/s2
9.8 m/s2
24.5 m/s2
none of these
