A 7 N birdhouse sitting in a tree. These are the forces on the birdhouse
What is 7N Normal and -7N Weight
100
A 40 kg girl travels to the moon. What is her mass?
What is 40 kg
100
What is an accumulation of electric charge on an insulated body.
What is static-electric force
100
Draw a force diagram of a boat sitting still in water.
What is fg down and fb up equal
100
A student on a bike was carrying a football. He braked suddenly, but football kept flying forward. This is an example of Newton’s …. Law
What is first law (inertia)
200
The mass of an elephant is 900 kg. The weight of the elephant is
What is 8820 N
200
A 40 kg girl travels to the moon. What is her weight? (g= 1.6 N/kg)
What is 64 N
200
What is the definition of a force?
What is a push or a pull
200
What does the force diagram tell you?
What is all of the forces acting on a receiver at one time.
200
The sailboat had a force of 21 N of wind to the right and 6N of water resistance to the left. The net force on the boat is…
What is 15N to the right
300
A moving scooter is pushed with a force of 12 N. If the friction force is -12N. The scooter will...
What is maintain a constant velocity
300
A 40 kg girl travels to the moon(g on moon=1.6 N/kg). What is her weight on Earth?
What is 392 N
300
Support force between and object and a surface; it is always perpendicular to the surface at the point where the object touches it
What is normal force
300
Draw a force diagram for a book sitting on the countertop
What is fg down and fn up, both equal
300
How many newtons of force is added to your weight if you increase your mass by 0.5 kg?
What is 4.9 N.
400
What is the force diagram for a climber on a mountainside?
What is weight straight down, normal at a 135* angle, applied at a 45* angle and friction at a 225* angle.
400
What object in this room experiences the largest gravitational field force?
What is everything experiences the same gravitational field force (9.8 N/kg)
400
Frictional forces between an object and the air going over the object.
What is air resistance (drag)
400
An object accelerating to the left must have an Fnet equal to what?
What is less than zero.
400
Would it be easier to hammer a nail on Earth or moon? Why?
What is Earth; larger gravity so bigger weight puling hammer down
500
A 90 N boy was swinging on a tire swing suspended from three different ropes attached to the tire. What is the force diagram?
What is 90 N down of weight and 3 tension up of 30N each
500
What is the difference between mass, gravitational field force, and weight?
What is mass= matter inside you (doesn't change)
gravitational field force( constant depending on planet 9.8N.kg for Earth)
weight= the effect of gravitational field force on a specific amount of mass
500
_____ applies a force while _____ receives it
What is agent; receiver
500
Draw the following force diagram: An object in ideal freefall
What is only weight
500
List all 4 basic interactions that all forces stem from.
What is gravitational, electromagnetic, nuclear strong, nuclear weak