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- 1. Multiple Choice
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.
- 2. Multiple Choice
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.
- 3. Multiple Choice
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.
- 4. Multiple Choice
If two forces acting on an object are equal, the object could be...
accelerating
decelerating
travelling at a steady speed
stationary
- 5. Multiple Choice
Which diagram represents a car travelling at a steady speed?
- 6. Multiple Choice
Which diagrams represent a car accelerating?
- 7. Fill in the Blank
The larger the resultant force on an object, the __________ the acceleration.
- 8. Fill in the Blank
The larger the mass of an object, the __________ the acceleration.
- 9. Multiple Choice
Select the correct equations.
Force = mass / acceleration
acceleration = Force / mass
Force = mass x acceleration
mass = Force / acceleration
acceleration = Force x mass
- 10. Fill in the Blank
A car with a mass of 2500 kg accelerates at a rate of 0.5 m/s2. Calculate the force acting on the object.
- 11. Fill in the Blank
A rocket is moving through space at a steady velocity. What is the value of the resultant force on the rocket?
- 12. Fill in the Blank
An object with a mass of 60 kg has a force of 15 kN acting on it. Calculate the acceleration of the object.
- 13. Multiple Choice
An object's inertial mass measures how difficult it is to change the velocity of the object.
True
False
- 14. Fill in the Blank
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?
- 15. Fill in the Blank
In Newton's Third Law, when force are balanced the objects are said to be in __________.
- 16. Open Ended
Explain why a cannon moves backwards when it fires a cannonball.
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