WorksheetsNewton's 1st Law
Total questions: 10
Worksheet time: 5mins
What does Newton's first law state
For every force, there is an equal and opposite force
An object at rest remains at rest, or if in motion, remains in motion at a constant velocity unless acted on by an external net force
Force = mass x acceleration
You can't exert a force on an object without the object also exerting a force back on you.
What is inertia
Property of a body to remain in motion or at rest with constant velocity
For there to be any change in velocity, there has to be either a change in magnitude or direction
written as ΣF, is a total force on an object. If many many forces act on an object, then it is the sum of all the forces
object can only accelerate if there is a force acted on that object
Describe what happens if you are riding a skateboard and hit something (like a curb) with the front wheels.
You fall backwards because the board is hitting something in the front.
You will stop along with your board.
Your body will keep moving forward and fly off your skateboard since the curb only stops the board, not yourself
Nothing happens
How does Newton's 1st Law affect the game of Tug of War
The rope will stay in the same place until the tugging starts (a new force is introduced)
We could measure a team’s force so that they can pull the rope based on their body masses and the acceleration that they are causing the rope to move at.
1 team pulls the rope towards themselves with a certain amount of force and the opposing team is also putting force on the rope. The same amount of force is applied from the ground to the people as they are putting on the ground.
It doesn't
When an object is stationary, all of the forces acting on it are balanced.
True
False
A stationary object has no forces acting on it.
True
False
All of the following statements are true. Which of them is NOT explained by Newton's first law of motion?
A book lying on a desk doesn't start moving without an external force.
Dropping a box causes it to accelerate downwards.
If I'm riding a skateboard, it doesn't spontaneously reverse directions.
A baseball thrown in space will keep moving in the same direction until it hits something.
You are sitting in a car, at rest, when another car rear ends your vehicle. Why do you and the passengers experience a whiplash, in terms of Newton's laws of motion?
A larger/more massive object means a larger inertia
An object at rest tends to stay at rest
Acceleration is the time derivative of velocity
None of these
You try and push a desk across the floor one direction, but your friend is trying to push the opposite direction. As a result, the desk doesn't move. This is an example of what forces?
opposite forces
balanced forces
parallel forces
unbalanced forces
______________ states that "An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force."
Newton's Third Law of Motion
Inertia
Newton's Second Law of Motion
Newton's First Law of Motion
