What is the weight of a person with 50 kg of mass on the moon (g=1.67 m/s/s)
83.5 N
According to Newton's 2nd Law, if you keep force constant, your acceleration will increase if you do what to the mass?
Decrease it
What is the acceleration of a car that goes from 12 m/s to 3 m/s in 3 seconds?
-3 m/s/s
A 4,200 kg elephant has an acceleration of 3 m/s/s. What is the elephant's force?
12600 N
What do we do with two forces that act in the same direction on the same object?
They add together
A car is travelling 300 m in 12 seconds. What is his average speed?
25 m/s
What are the units of acceleration?
m/s2
What does "g" represent in physics?
Acceleration due to gravity
A force of 48 N is applied to a 16 kg mass. What is the acceleration?
3 m/s/s
Provide an example of kinetic friciton
A boat on the water as it sails
What is the velocity of a car that goes from a 5m mark to a 15 m mark in 10 seconds?
1 m/s
What are the units of mass ?
kg
Accelerate in the direction of the unbalanced force
If an object that has a mass of 1000 kg is pushed with 4000 N of force, how fast will the car accelerate?
4 m/s/s
According to Newton's 3rd Law, when you kick a ball and exert a force on the ball, the ball will do what?
Exert an equal force back on your foot
True or False: You can still be moving if there is no acceleration?
True
List the 4 vectors we've learned so far
Displacement, Velocity, Acceleration, Force
A person walks 2 m/s North. Is this an example of speed or velocity?
What is the different between mass and weight?
Mass is a measure of an object's inertia, and weight is the force of gravity that an object experiences
Slamming on your breaks so quickly that everyone in the car gets forced forward is an example of which law?
Newton's 1st Law
If you know both the speed and direction of an object, then you know its:
Velocity
What are the base units of a Newton (in kg, m, and s)
kg(m/s2)
If there is a force that is pulling an object with 10 N to the left, and another force pulls the same object 10 N to the right, then we can say what about the forces?
They are balanced