True or false:
As the masses of 2 objects increase, their gravitational force will decrease.
False. It will increase also.
What is the mass of a truck that weighs 44,100 N?
Explain your answer.
The mass is 4,500 Kg.
Divide the force by 9.8
define speed
The distance traveled by an object divided by the time taken to travel that time.
A car goes from 0 m/s to 200m/s in 15 seconds. What is the acceleration
a= 13 m/s2
Order the following in increasing gravity
Earth, Sun, Moon, Neptune
___________ is when a fallen object reaches constant speed.
what is Terminal Velocity
gravity is
A measure of gravitational force.
what is the unit for force
Newton
a type of acceleration that occurs in a circular path
Centripetal accelelation
a rate at which velocity changes over time
Is defined as an object's change in position relative to a reference point.
Motion
A car travels 200 km in 80 minutes. what is the speed of the car in Km per hour
S= 150 km/hr
Explain the 2 components of the Law of Universal Gravitational Force
Distance: Gravitational force DECREASES as distance INCREASES
Mass: Gravitational force INCREASE as mass INCREASES
A coffee mug has a mass of 0.67 kg. What is the weight of the mug?
Explain.
6.57 N
multiply the mass times gravity (9.8m/s2)
A force of attraction between objects that is due to their masses
Gravity
A car goes from 0 m/s to 200m/s in 15 seconds. What is the acceleration
What formula will you use to solve this problem?
a= (Vf - Vi) / t
What is Law of Universal Gravitational Force
Define mass
Amount of matter in an object
Acceleration happens when any or both or the following change:
Direction or speed
what is the acceleration of a boulder that is going down a hill with a force of 600 N and a mass of 35 kg?
acceleration is 17 m/s2
a push or a pull
Force
A force that opposes motion between 2 surfaces that come in contact
Friction
Is defined as the speed of an object in a particular direction
Velocity
what are the 2 components you need to find a force
what is the time of an object falling at 68.6 m/s
7 seconds
_______________ occurs when air resistance does not affect the motion of a fallen object
what is free fall
True or false: Explain
16 m/s2 East is a measure of velocity
False
unit for velocity is m/s
Formula for speed
S= d/t