What do k, h, da, u, d, c, m stand for? All must be correct
Kilo, hecto, deca, base unit, deci, centi, milli
100
What is the definition of speed?
Distance traveled in a certain amount of time
100
What is the definition of velocity
Speed in a certain direction
100
What is the definition of a force?
A push or a pull
100
Calculate the speed of a car that travels 150 km in 3 h.
50 km/h
200
What are the units of measurement for volume, mass, and distance?
Liters, Grams, and Meters
200
Define a reference point
An object used to determine if another object is in motion
200
What is the definition of acceleration?
A change in velocity
200
Complete the sentence. All forces have a ______________ and a ______________
Magnitude, Direction
200
Calculate the velocity of a person that travels 28 m in 7s to the east.
4 m/s east
300
Convert 7 km into m
7000 m
300
Give a point of reference to observe all of the motion in a football game
Stands, sidelines
300
Give the formulas for velocity and acceleration.
V=d/t and direction
A= (v2-v1)/t
300
List Newtons Three Laws
1. Law of Inertia: and object in motion stays in motion while an object at rest stays at rest unless acted upon by an unbalanced force.
2. F = m x a, the force of an object is equal to the mass times the acceleration
3. Action/ Reaction, every action has an equal and opposite reaction
300
A train is accelerating at a rate of 75 km/h2 and has a mass of 100 kg. Calculate the force of the train.
7500 N
400
Convert 475 cg into dag
0.475 dag
400
Explain the difference between instantaneous and average speed
Average speed is the total distance traveled over the total amount of time. Instantaneous speed is the speed of an object a certain point in time.
400
What does acceleration look like on a distance vs. time graph
A curved line
400
How does increasing friction affect sliding?
Increasing friction reduces sliding
400
Calculate the acceleration of a person that is traveling 24 m/s and then speeds up to 44 m/s in 5 s.
4 m/s2
500
Convert 7435 mL into L
7.435 L
500
Explain how you could calculate your speed
Run a certain distance and measure the time it took you to run it
500
How can acceleration occur (change in two things)
Change in velocity and/or change in direction
500
What are the six forces we have explored?
Tensional Force
Applied Force
Force of Gravity
Frictional Force
Air Resistance
Normal Force
500
Calculate the acceleration of a car that is traveling 39 km/h and slows down to 3 km/h in 6h.