Newton's Laws of Motion
Vocabulary
Calculation
100
Newton's first law is also called the law of ________.
inertia
100
a push or pull
force
100
A car advertisement states that a certain car can accelerate from rest to 70 km/h in 7 seconds. Find the car’s average acceleration.
10 m/s2
200
Newton's first law of motion states an object at rest stays at rest, and an object in motion stays in motion until it experiences an ____________.
unbalanced force
200
the unit used to express force
newton
200
How much force is needed to accelerate a 795 kg car by 15 m/s2?
11,925 N
300
Newton's second law of motion states the acceleration of an object depends on the _____ of the object and the amount of _______ applied to it.
mass, force
300
the combination of all the forces acting on an object
net force
300
What is the mass of an object if it takes a net force of 40 N to accelerate at a rate of 0.88 m/s2?
45.45 kg
400
Newton's third law of motion states whenever one object exerts a force on a second object, the second object exerts an _______ and ________ force on the first.
equal, opposite
400
the rate at which velocity changes
acceleration
400
A car is travelling at a speed of 27 m/s. It decreases it speed to 18 m/s over 9 seconds. What is its average acceleration?
-1 m/s2
500
When an object applies a force on another object, the second object applies a force in the ________ direction.
opposite
500
acceleration in a circular motion
centripetal acceleration
500
Calculate the acceleration of the box. Include the direction it moves.
15 m/s2
600
the tendency of all objects to resist a change in motion
inertia
600
Calculate the acceleration of the box. Include the direction it moves.
10 m/s2 to the left