force
force
momentum
motion
misc.
100
  • If a baseball and a cannonball are dropped from the same height at the same time, and there is no air resistance, which ball will hit the ground first?

they will hit at the same time

100

A physics student has a massof 60 kg. What would his weightbe? Fw = Mass x Gravity (9.8)

60X9.8=588N

100

A 0.2 kg rubber ball hits a brick wall and experiences a change in velocity of 25m/s. What is the impulse?

P=m x v 0.2x25=5kg m/s

100

The slope of a position (d/ t)graph is equal to what?

speed

100
  • The law of universal gravitation says that gravitational force is affected by what 2 things?

mass and distance

200

A car with a massof 1000 kgmoves along the ice with a constant velocityof 25.0 m/sSouth. What is the car’s momentum?

P=m x v 1000x25=25,000 kg m/s

200
  • A measure of the gravitational force exerted on an object.

weight

200

A ping pong ball has 2 kgm/s of momentum when thrown 8 m/s. What is the mass of the ball?

  • M= 2/8=0.25kg
200

A change in positionrelative to a referencepoint.

motion

200

Why is it easy to slip when there is water on the floor?

Decreases the friction between your feet and the floor

300

When a motorcycle increasesits velocity(speed) what happens to its momentum?

it will also increase

300
  • A measure of the amount of matter in an object.

mass

300
  • A deer with a mass of 146kg is running head on toward you with a speed of 17m/s. Find the momentum of the deer.
  • P=m x v 146x17=2,482 kg m/s
300
  • Thedistancean object moved overthe timein which the motion took place. (d/t)

speed

300

Always causes change in speed , direction, or both

unbalanced forces

400

6N-->___<-----9N

what is the net force? 

3N <-- to the left 

400

The force that opposes motion of an object.

friction

400
  • When the speed of an object doubles, its momentum will…

double

400
  • Thespeedof an object in a certain direction.

velocity

400

If you travel to the moon, what will happen to your MASS?

MASS NEVER CHANGES 

500

What is the forceof a car hitting a tree if the car has a massof 1200kgand an acceleration of 2 m/s2? Formula: Force = Mass x Acceleration

M x A =. 1200x2=2400N

500
  • A force of attraction between objects

gravity

500

after two objects collide, the objects bounceoff each other

elastic

500
  • The rate of velocity (speed) changeovertime.

acceleration

500

When the net forces equal 0 N, they are what?

balanced forces

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