Motion
Newton's Laws
Forces
Hodgepodge
100
A motion is defined as an object's change in what?
Position
100
An object in motion tends to stay in motion and an object at rest tends to stay at rest. This is due to the object's
Inertia
100
This is the type of force which causes all objects to be attracted towards each other.
Gravity
100
This is the term for an object's location compared to other objects.
Position
200
What two values are needed to calculate speed?
Distance and Time
200
A person applies a 100 newton force to a wall when leaning on it. What must be the force of the wall back on the person be?
100 Newtons
200
This is the metric unit used for measuring forces.
Newton(s)
200
If a car travels 80 meters in 4 seconds, what is the speed of the car?
20 m/s
300
Based on the graph below, between what two points is the object at rest?
Between B and C
300
If a 10 newton force causes an object to accelerate at 2 m/s2 , what acceleration would a 20 newton force cause on the same object?
An acceleration of 4 m/s2
300
This is what the force of gravity on an object is called.
Weight
300
This is the type of force which always acts against moving objects.
Friction
400
Based on the graph below, between what two points is this object moving at the greatest speed?
Between C and D
400
A 80 newton force acts on a 20 kilogram object. How much will this object accelerate?
force 80 newtons
Acceleration=______=________= 4 m/s2
mass 20 kg
400
Using wheels or rollers to help move an object, an object aims to reduce what?
Friction
400
In the chart below, what is the value for the missing force?
Force (N) Acceleration (m/s2)
20 4
40 8
???? 16
160 32
80 Newtons
500
Acceleration occurs when there is a change in what two variables?
Speed/Velocity and Direction
500
A mosquito strikes the windshield of a fast moving car. Does the car feel a greater force, less force, or equal force to the mosquito?
Equal force
500
An object which experiences an unbalanced force will do what?
Accelerate
500
What is the momentum of a 5 kilogram cat running at a speed of 10 m/s?
momentum= mass x speed= (5kg) (10 m/s) =50 kg m/s