Newton's belongings
A rock sitting on a flat plain and not moving what so ever is an example of which one of Newton's laws?
It is an example of Newton 1st law.
True or false: The relationship between Force, Mass, and Acceleration can be represented as F = m/a.
False, The relationship between Force, Mass, and Acceleration can be represented as F = m*a.
What are some examples of static friction ?
Some correct examples include :
- Someone sitting down on a stool without falling
- a Book laying flat on a table
- an apple staying still on a plate
A person is pushed out of a rocket into space and they float in the direction that they were pushed from. This scenario is an example of Newton's ____ law
Newton's 2nd Law
If a bowling ball is going down the lane at an acceleration of 2 m/s2 and the force of the bowling ball is 12 N, what is the mass of the bowling ball?
The ball weighs 6 kg.
F = ma
12 N = m * 2 m/s2
6 kg= M
What are some examples of fluid friction?
Some correct examples include:
- an airplane going through the sky
- a fish swimming against the current
- a car fighting the wind current
When a table supports a person sitting on top of it without breaking, it is an example of which one of Newton's laws
Newton's 3rd Law
If a sky diver is falling from a height of 1500 m from Earth and the sky diver has a mass of 2 kg, what is the potential energy of the sky diver assuming that the mass doesn't change?
The acceleration of the sky diver is 29400 J
PE = mgh
PE = 1500*9.8*2
PE = 29400 J
What are examples of rolling friction?
Some correct examples include:
- A wheel of a car going down a highway
- a shopping cart moving along the wet floor
- a bowling ball rolling down the alley lane
True or false: The floor supporting yourself beneath your feet is an example of Newton's 1st law.
False, The floor supporting yourself beneath your feet is an example of Newton's 3rd law.
If a roller coaster is traveling at a velocity of 60 m/s with the mass of 20 kg, what is the kinetic energy of the roller coaster?
The roller coaster has a kinetic energy of 36000 J.
KE = 1/2mv2
KE = 1/2*20*602
KE= 10* 3600
KE = 36000 J
What are examples of Sliding friction?
Some correct examples include:
- An ice skater's skate gliding down the rink
- a person going down a slide
- the breaks on a bike slowing down the wheel
True or false: Friction causing an object to slow down is an example of Newton's 2nd law of motion
What is relationship between Kinetic and Potential energy?
Potential Energy is the amount of stored energy when an object is rested & Kinetic energy is the amount of energy in an object in motion (or moving)
Which means that the more Potential energy there is, the less Kinetic energy there is. In other words, the relationship between P.E. and K.E. is negative.
What are some things that affect friction? (Hint: it was the entire point of the friction lab)
- The surface area of the two object colliding
- The type of surfaces
- Mass of the objects