Types of Force
Newton's First Law of Motion
Newton's Second Law of Motion
Newton's Third Law of Motion
Miscellaneous
100
How is force defined?
A push or pull on an object.
100
What is the term for the resistance to the change in motion? It is also the other name for Newton's 1st Law.
Inertia
100
What is the equation that represents Newton's Second Law of Motion?
F = m * a
100
Complete the sentence:
For every action...
there is an equal and opposite reaction.
100
What is the net force?
Net Force = 0
200
What type of force is shown in the picture, if there is no motion?
A Balanced Force
200
Newton's first law states that an object will stay at rest unless...
Acted on by an unbalanced force.
200
How do you know an object is accelerating?
It is speeding up, slowing down, or changing direction
200
If the woman pushes her left foot, which direction will the boat move?.1937377.jpg)
The boat will move away from the dock towards the right.
200
What is the net force?
Net Force = 70 Newtons to the left
300
What is the resistance force that occurs when two surfaces come into contact and causing thing to slow down or stop?
Friction
300
What is the net force acting on an object if two students are pushing a shopping car in the same direction each with 12 Newtons of force East?
24 Newtons East
300
Why will the heavier ball not travel as far?
With a larger mass, more force is required to accerate the heavy ball.
300
What helps a rocket lift off and move away from the ground?
The thrust of the the rock fumes pushing downward on the ground.
300
How do you know if an object has more inertia?
Objects with more mass have more inertia.
400
When riding a bicycle, what type of friction exists between your tires and the ground?
Rolling friction
400
If you throw a rock while in outer space, what will happen to it?
It will continue moving, until an unbalanced force acts on it.
400
Calculate the force required to move a 10kg car 5 m/s/s?
50 N
400
When you walk, your foot pushes downward on the ground. State the reacting force to this.
The ground pushes upward on your foot.
400
Explain which of Newton's Law this represents and why?
Object stays at rest unless acted upon by an unbalanced force (1st Law)
The object moves with more acceleration if more force is applied (2nd law)
Force applied down on the object causes a reaction force pushing the ball up (Newton's 3rd law).
500
What type of friction is an opposing force between an object in water or air?
Fluid friction
500
Explain why you lean forward when your car suddenly stops.
Your body's inertia wants to continue moving forward at the same speed the car was moving.
500
If an equal force is applied to a heavy object and a light object, which one will accelerate more?
The object with less mass (the lighter one).
500
If you punch a wall with 15 N of force how much force is the wall applying on your hand?
15 N
500
How could this man increase the acceleration of the shopping cart if he maintains a steady force?
Remove move from the cart and reduce the mass.