Applying Force
Double points: what happens to the amount of force needed in order to change the velocity of an object with more mass?
more force
When objects collide, the force that the object experience is
equal or the same
define force
a push or pull
What is the capital of australia?
a. melbourne
b. Syndney
c. Canberra
d. Brisbane
c. Canberra
Double Points - in order to stop an object you must apply force in the...
opposite direction
Double points - two objects experience the same force but change velocity by the same amount. Based on this information, what can you infer about their mass?
different mass
When two objects of different masses collide, which one experiences the greatest force?
Neither. same force
define velocity
speed with direction
Who is the eldest daughter on the Simpsons?
a. Mary
b. Lisa
c. Marjory
d. Amanda
b. Lisa
in order to speed up an object you must use force in the...
in the same direction
as mass increases, velocity decreases
When two objects of different masses collide, which one experiences the greatest change in velocity?
the object with less mass
Double points: define acceleration
change in speed over time
What two colors make up the flag of Denmark?
a. white and blue
b. red and blue
c. yellow and white
d. white and red
d. white and red
Compared to slowing down, how much force does it take to speed up an object?
a. more. b. less. c. the same
If you have two objects -- one is 12kg and the other is 20kg. They both change velocity by 8m/s. Which experienced the greatest force?
the 20kg one
double points - You run a test twice in which objects collide. The objects are the same mass. In test 1, the object sped up by 8m/s. in test 2, in test 2 the object sped up by 10m/s. In which test, did you exert the most force?
test 2
define mass
the amount of matter in an object
double points: What continent do açai berries grow on?
a. North America
b. Europe
c. South America
d. Africa
c. South America
What are the units for force?
Newtons
What is the difference between mass and weight?
mass doesn't change and is a measure of matter
weight is a measure of gravity pulling on mass
A skateboard hits a two different soccer balls. The soccer balls are different masses. one has a mass of 10kg and the other has a mass of 3kg. both change velocity by 4m/s. Which collision exerted the most force?
the collision with the 10kg ball
what is the other name for newton's first law
law of intertia
Nori is which type of sushi ingredient?
a. seaweed
b. fish
c. fish eggs
d. rice
seaweed