Vocabulary
Forces
Distance and speed
Other
100
What is a force?
A push or a pull
100
Is a push a force? (Yes or No)
Yes
100
Distance divided by time describes what property of motion?
Speed
100
Does friction make an object speed up or slow down?
Slow down
200
_____ is how fast an object is traveling
speed
200
The force that pulls objects toward the center of the Earth is called
Gravity
200
How do you calculate/solve for time?
Distance รท speed
200
What does a DST triangle look like?
300
What is friction?
When one force rubs against another
300
Two classes are playing tug-of-war. If the center of the rope is not moving, what must be true? (choose all that apply)
A. Both classes are pulling equally.
B. Both classes have equal mass.
C. The forces are balanced.
D. One class is pulling harder than the other.
A. both classes are pulling equally and C. The forces are balanced
300
If I traveled 100 miles in 2 hours, what was my speed?
50 mi/hr
300
The force that works against motion and tries to slow objects down is called
friction
400
What is momentum?
mass in motion
400
A boy is pulling his little sister in a wagon. If his older brother comes along and they pull on the wagon together, how will this increase in force affect the motion of the wagon?
a. it will accelerate
b. it will remain at rest
a. it will accelerate
400
Which two tools should be used together to measure speed? (choose 2)
A. Balance and spring scale
B. Clock and a measuring tape
C. Meter stick and stopwatch
D. Ruler and graduated cylinder
B. Clock and measuring tape
C. Meter stick and stop watch
400
Which object will travel farther...a bowling ball or a ping pong ball? Why?
bowling ball
500
What is inertia?
an object at rest tends to stay at rest
500
Force is measured in...
Newtons (N)
500
Four friends wanted to compare how they ride bikes. They all rode for 10 minutes in the same direction. The table below describes their ride. Which one rode at the greatest speed?
Friend Distance Traveled in 10 minutes (miles)
Elijah 1.0
Regina 0.5
Jordan 1.3
Devon 0.8
Jordan
500
Which surface may create the most friction?
a. a basketball court
b. a gravel road
c. a road covered in ice
b. a gravel road