What happens to your weight as your mass increases?
Increases
100
State Newton's 1st Law.
An object in motion, stays in motion, and an object at rest, stays at rest, unless acted on by an outside force.
100
State Newton's 2nd Law
F=ma Force=mass X acceleration
100
State Newton's 3rd Law
For every action, there is an equal but opposite reaction.
100
Label the following as eith vector or scalar quantities:
a) 10 meters
b) 10 meters, west
c) 2 miles, up
d) 15 degrees celcius
a) scalar
b) vector
c) vector
d) scalar
200
A Dog has a mass of 5 kg on Earth. What would it's mass be on Jupiter?
5 kg
200
Newton's 1st law is also known as The Law of ________.
Inertia
200
Newton's 2nd Law is also known as the Law of __________.
acceleration
200
Newton's 3rd Law is also known as The Law of ___________________.
action/reaction
200
What is the acceleration of free fall?
9.8 m/s^2
300
What is the boiling point of water in all 3 scales?
F= 212 C= 100 K= 373.15
300
A rolling ball comes to a stop. How do we know that one or more forces have acted on the ball?
The ball changes motion (stops)
300
One child pushes a cart to the right with a force of 100N. Another child pushes the cart to the left with a 50N force. What is the NET force on the cart?
50 N to the right
300
When you push a marble with a 0.5N force, the marble will
a) accelerate at 10 m/s^2
b) Will likely not move
c) Pushes on you with a 0.5 N force
C
300
Kepler's Laws discuss the ____________ Laws of Motion.
Planetary
400
What is the freezing point of water in all 3 scales?
F= 32 C= 0 K=273.15
400
You whirl a yo-yo in a flat circle above your head. If you let go of the string, Newton's first law tells you that the yo-yo will do what?
move in a sraight line at a constant speed until a force acts to change its motion.
400
Using the formula F=ma, what happens to the acceleration as the mass increases?
decreases
400
When you push against a wall, you feel a push on your hand. Why?
Because the wall is pushing back on you
400
What is the rate at which velocity changes with time?
Speed
500
Why would finding the density of an object tell us the identity of that object?
Beacuse all elements have unique density.
500
A truck comes to a sudden stop. A box in the back of the truck slides forward and hits the front part of the truck. Why?
The box slides forward because of inertia
500
Usin the formula F=ma, what happens to the force of a 50N object as the acceleration increases?
The force increases
500
When you throw a basketball, your force on the ball accelerates it. The ball pushes back on you with an equal and opposite reaction force. Why don't you accelerate as much as the ball?
Your acceleration is much smaller than the ball's because of your larger mass.
500
Why would we want to study Newton and Kepler's Laws together?