Hailey’s comet reappears about every 70 years. From this, we know that the comet is experiencing this?
What is a net force that is greater than 0 N?
100
Weight is measured in this.
What are Newtons?
100
Acceleration is typically measured in these units.
What is meters per second squared?
100
Volume is typically measured in this unit.
What are liters?
100
This is the quantity of stuff in an object.
What is mass?
200
Planets that orbit the sun are obviously experiencing a net force. Why do we know this?
What is they are not traveling in a straight line?
200
If this is absent, a moving object would require no force to keep moving.
What is friction?
200
In the equation F=ma, the units of mass are this.
What are kilograms?
200
The difference in the amount of force required to start/stop a train versus a car is due to this.
What is inertia?
200
In order to launch a 2000 N rocket resting on its launch pad, it would be necessary to provide at least this amount of force.
What is more than 2000 N of force?
300
This is a measure of the laziness of an object.
What is mass?
300
Newton’s first law is described by this equation.
What is F=ma?
300
Friction is caused by this.
What is irregularities on the surfaces of touching objects?
300
A 5 kg rock on the surface of the Earth would likely have this weight.
What is ~ 50N?
300
Force is measured in this unit.
What is Newtons?
400
Objects changing speed and/or direction are said to be doing this.
What is accelerating?
400
Objects at rest are experiencing this amount of net force.
What is none?
400
The mass of the same stone on Earth would be this on the moon.
What is the same?
400
The force that acts between materials that touch as they move past one another is known as this.
What is friction?
400
A good approximation of the acceleration on an object due to Earth’s gravity is this.
What is 9.8 m/s^2?
500
Objects traveling in a straight line and at a constant speed are experiencing this amount of force.
What is none?
500
In actuality, weight is a measure of this.
What is the force of gravity on an object?
500
The weight of the same stone on the Earth would be this on the moon.
What is different?
500
Madam Dirtclod has a mass of 100 N and she has been tied up and laid across some railroad tracks. A 50 N train accelerates (1 m/s2) towards the trussed up damsel in distress. When the train and the damsel collide, which object would likely be dislodged from their position on the tracks?
What is the train?
500
The property of a body to resist changes to its state of motion is known as this.