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- 1. Multiple Choice
the less mass, the less acceleration
the greater the force, the less acceleration
is related to balance
the greater the mass, the less acceleration
- 2. Multiple Choice
The Normal is a force that:
Never produces acceleration
Has the direction of motion
Is equal to the inertia
Occurs in free fall
- 3. Multiple Choice
The friction force:
Never produces acceleration
It's perpendicular to the surface
Is not related to non-equilibrium
It is always opposite to the movement
- 4. Multiple Choice
According to Newton's 2nd Law, when an object is thrown upward:
It has no acceleration
its acceleration goes downwards
its acceleration is zero at the highest point
while it rises it is in balance
- 5. Multiple Choice
Newton's second law is related to bodies that move uniformly
True
False
- 6. Multiple Choice
When a car is moving horizontally and it slows down we have that:
Its net force is zero
It is in equilibrium
Its net force is opposite to the movement
Its engine force is greater than friction force
- 7. Multiple Choice
When a body passes from rest to a certain speed, it is applied in that axis ∑F = ma
True
False
- 8. Multiple Choice
If an object moves with acceleration on a horizontal surface, then ∑Fy = ma
True
False
- 9. Multiple Choice
When a car moving to the right slows down, ∑F = - ma is applied
True
False
- 10. Multiple Choice
A freely falling body is an example of Newton's 2nd law.
True
False
- 11. Multiple Choice
The acceleration that an object acquires has the same direction as the force that produces it.
True
False
- 12. Multiple Choice
The acceleration of a body is inversely proportional to the force applied to it.
True
False
- 13. Multiple Choice
The greater the mass and the less force, the greater the acceleration.
True
False
- 14. Multiple Choice
If the force acting on an accelerating body is doubled, its acceleration is also doubled.
True
False
- 15. Multiple Choice
A car moving to the left slows down, so its acceleration is directed to the left.
True
False
- 16. Multiple Choice
Regarding inertia, points out the correct statement:
Is the friction force between two surfaces
Is directly proportional to the mass
It is mentioned in 2nd Newton's Law
Is a reaction force between two bodies
- 17. Multiple Choice
The Normal is a force that:
Is opposite to the movement.
It points to the center of the Earth
It makes a 90º angle with respect to the surface
It has the same direction as the weight of an object
- 18. Multiple Choice
Forces equal in magnitude but in opposite direction are a statement of the:
1st Newton's Law
3rd Newton's Law
2nd Newton's Law
Kinetic Friction
- 19. Multiple Choice
If a car moves to the right with constant velocity, it is because:
None force acts on it
Its weight pushes it to the right
All forces cancel each other
The force of its motor is greater than the friction
- 20. Multiple Choice
An object is in equilibrium when it is at rest and when it is moving with constant velocity?
True
False
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