1st Law (Inertia)
Which of the following best defines the property of inertia?
The tendency of an object to resist any change in its state of motion.
How many letters are in the alphabet?
“The alphabet.
What is the force required to accelerate a 5 kg object at a rate of 4 m/s²?
the big green bouncy ball
flubber
A book rests flat on a wooden table. According to Newton's Third Law, if the action force is the Earth pulling downward on the book (gravitational force/weight), what is the corresponding reaction force?
Correct! The interaction is gravitational between the Earth and the book. I
What is inertia best defined as?
Correct! Inertia is the intrinsic property of an object to resist changes to its current state of rest or motion.
You have two coins that equal 30 cents, and one of them is not a quarter. Which coins do you have?
A quarter and a nickel.The nickel is the one that isn’t a quarter.
A net force of 36 N is applied to a 4 kg cart. What is the resulting acceleration of the cart?
how did they shrink from Honey I Shrunk the Kids
the shrink ray)
Why do action-reaction force pairs never result in cancellation (net force of zero) to prevent motion?
How does the mass of an object affect its inertia?
Correct! Mass is a quantitative measure of inertia: the larger the mass, the harder it is to change its motion.
A man once said he went 35 days without sleep. How is that possible?
by sleeping at night
An object experiences an acceleration of 5 m/s² when a net force of 45 N is exerted on it. What is the mass of the object?
way did Wall-E go to space (two options)
for eve and the living plant
A massive semi-truck collides head-on with a small parked passenger car. How do the magnitudes of the forces experienced by each vehicle compare during the collision?
Correct! Newton's Third Law states that forces come in equal and opposite pairs, regardless of the sizes, masses, or speeds of the colliding objects.
you are a passenger in a car, and the driver slams on the brakes. You lurch forward. Which statement accurately explains this using Newton's First Law?
Your body tends to maintain its forward motion due to inertia until an outside force (the seatbelt or seat)
. If Mrs. Smith’s rooster lays an egg in Mr. Brown’s yard, who owns the egg?
No one. Roosters don’t lay eggs.
If the net force acting on an object is doubled while its mass remains constant, how does the object's acceleration change?
what did Tadashi Hamada mack
he made Baymax from big hero 6
What is the fundamental difference between a set of balanced forces and an action-reaction force pair?
Correct! This distinction is crucial: balanced forces cancel out because they target the same object, while action-reaction forces involve two different bodies
if an object is moving at a constant velocity in a straight line, what can be concluded about the net force acting on it?
What can run but never walks, has a mouth but never talks, and is often found between banks?
A river.
On Earth (where g ≈ 9.8 m/s²), what is the upward acceleration of a 10 kg block if a net upward force of 148 N is applied to it?
what did .E.T. need to get home
to "phone home
A swimmer propels themselves forward through the water. According to Newton's Third Law, what is the direct action force that creates this forward motion?
Correct! The swimmer pushes backward on the water