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Moving About
Moving About
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1
Newton’s 2
nd
Law of Motion describes the relationship between all of the following, except ______.
Acceleration
Mass
Velocity
Force
2
The definition of inertia is an object's tendency to what?
Immediately come to rest
Conserve energy
Remain in uniform motion/rest
Remain in constant acceleration
3
Newton's 3rd Law of Motion is also known as THE LAW OF___________
F=ma
Inertia
action and reaction pairs
Forces
4
The safety design feature ABS stands for what?
Australian braking standards
Anti-lock braking sensor
Anti-lock braking system
Automatic brake and suspension
5
Which law of physics is involved in how seatbelts work?
Newton's first law of inertia
Newton's third law of equal reactions
Newton's second law of force, mass and acceleration
Law of conservation of mass
6
Who came up with the 3 Laws of motion?
Mily Cyrus
Sir Isaac Newton
Pythagoras
Albert Einstein
7
Newton's Second Law of Motion is known as___________
F=ma
Inertia
Action
Force
8
Airbags are an important safety device in cars. What is their purpose?
Decrease the impulse of impact
Decrease the distance of impact
Increase the change in momentum of impact
Increase the time of impact
9
What is the unit for momentum?
Joules
Newtons
Newton seconds
Newtons per square metre
10
How do car safety features reduce the force of impact?
Reducing impulse in the collision
Decrease the time of the collision
Increase the time of the collision
Reduce inertia
11
Newton’s 3
rd
Law of Motion states that for every action, there is an equal and ______ reaction.
Delayed
Opposite
Chemical
Identical
12
What is the factor that kills you in a car crash?
Time
Speed
Acceleration
Force
13
Determine the kinetic energy of a 500 kg car moving at 20m/s.
100 000 J
5 000 J
10 000 J
50 000 J
14
Which of Newton’s Laws of Motion would apply to motion of a roller coaster?
Only the 1st Law
None of them
All 3 of them!
The Secret 4th Law
15
Which car safety feature is NOT designed for side collisions?
Impact bars
Crumple zones
Seatbelts
Airbags
16
What is the equation for work?
Force x Displacement
Mass x Displacement
Force x Time
Mass x Acceleration
17
According to Newton’s 1
st
Law of Motion, if Goofy kicked a soccer ball down a long grassy field, it would _________.
keep going
slow down due to friction
start to spin sideways
speed up due to momentum
18
What force is NOT acting on a car when it is moving forward?
Friction
Thrust
Weight reaction
Tension
19
Newton's First Law of Motion is known as the LAW OF_________________
Inertia
Force
Action
Reaction
20
An object in motion stops when.....
It is eaten
it is acted upon by an outside force.
It falls of an edge.
(It never stops)
21
The main goal of car safety features is to reduce the what?
Chemical energy
Momentum
Force of impact
Impulse
