Which Law
A baseball hit with a force of 10 N accelerates more than a bowling ball hit with a force of 10 N.
2nd law
This force opposes the force of gravity when objects fall through the air.
air resistance
Do balanced or unbalanced forces result in a change in motion?
unbalanced
Newton's 1st law is also known as this
Mass in motion is also known as...
Momentum
A balloon flies forward when air escapes from it.
3rd law
What is the acceleration due to gravity on Earth?
9.8 m/s squared
Mikaia pushes a box with a force of 10 N to the right, and Lina pushes with a force of 3N to the left. Find the net force applied to the box.
7N to the right
The more...you have, the more inertia you will have.
mass
If the mass of a bulldozer is 8,250kg and it is moving at a speed of 12m/s, how much momentum does it have?
99000 kg*m/s squared
A book left on the table overnight is there when you return in the morning.
1st law
What two factors affect gravitational pull?
Mass and the distance between the masses
Name 3 common forces that can be acting on an object.
Friction
Gravity
Air resistance
The law that states that an object accelerates in the same direction as the force applied to it is...
Newton's 2nd law
What common force best explains why a feather and a tennis ball do not both fall with an acceleration of 9.8 m/s squared like they should?
air resistance
You run into a friend while skating and you both fall in opposite directions.
3rd law
Ignoring air resistance and friction, what should be observed about two objects that are dropped at the same time?
They should have the same acceleration.
Find the weight of a 7.2 kg object.
71N
What would a man weigh if he has a mass of 86.7kg?
850N
Fast Airplane Slow Bicyclist Parked Car Fast Bicyclist
The bike you are riding hits a hole and stops quickly, but you fly forward over the handlebars.
1st law
The maximum speed a falling human can reach is 55 m/s. What is the name for this speed, and what two forces become balanced for this to be possible?
Terminal velocity
Gravity and air resistance
Find the acceleration of the box below.
30N 45kg 50N
0.4m/s squared
The force exerted on a cart is constant. On a frictionless surface, if the cart's mass is increased, what will happen to its acceleration? Include which law supports your answer.
Decreases
Because of Newton's 2nd law
An electric bike accelerates from 8.900m/s to 12.50 m/s in 5.000s. If the mass of the bike and its rider is 166.0kg, find the force on the car and the final momentum.
F = 119.5N
P final = 2075kg*m/s