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16 questions
Select Newton's First Law
Force = mass x acceleration
Objects will not change their motion unless acted on by an external force.
When two objects interact, they exert equal but opposite forces on each other.
Select Newton's Second Law
Force = mass x acceleration
Objects will not change their motion unless acted on by an external force.
When two objects interact, they exert equal but opposite forces on each other.
Select Newton's Third Law
Force = mass x acceleration
Objects will not change their motion unless acted on by an external force.
When two objects interact, they exert equal but opposite forces on each other.
If two forces acting on an object are equal, the object could be...
accelerating
decelerating
travelling at a steady speed
stationary
Which diagram represents a car travelling at a steady speed?
Which diagrams represent a car accelerating?
The larger the resultant force on an object, the __________ the acceleration.
The larger the mass of an object, the __________ the acceleration.
Select the correct equations.
Force = mass / acceleration
acceleration = Force / mass
Force = mass x acceleration
mass = Force / acceleration
acceleration = Force x mass
A car with a mass of 2500 kg accelerates at a rate of 0.5 m/s2. Calculate the force acting on the object.
A rocket is moving through space at a steady velocity. What is the value of the resultant force on the rocket?
An object with a mass of 60 kg has a force of 15 kN acting on it. Calculate the acceleration of the object.
An object's inertial mass measures how difficult it is to change the velocity of the object.
True
False
A man pushes on a wall with a force 30 N. What is the size of the reaction force exerted by the wall on the man?
In Newton's Third Law, when force are balanced the objects are said to be in __________.
Explain why a cannon moves backwards when it fires a cannonball.
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