# Review Force and Motion-1

1. ### The cars have more powerful engines.

No. The trucks have more powerful engines than the cars do.
2. ### The cars have tires with more friction.

No. The truck tires are larger, which means they have more contact with the ground, and more friction.
3. ### The cars weigh less.

Yes! The heavier an object is (the more mass it has), the more force it takes to move it. The trucks weigh a lot more than the cars, so it takes much more energy to get them moving.
4. ### The cars are more streamlined

No. A streamlined shape helps when the cars are moving quickly, but does not do much as they are starting up.

### Florida

SC.5.P.13.3 Investigate and describe that the more mass an object has, the less effect a given force will have on the object's motion.
 The Difference Between Weight and Mass video Water in a Glass, part 2 video Water in a Glass, part 3 video Water in a Glass, part 1 video Obedient Coin video Wrong Way Balloon video High Bounce video Review Force and Motion-1 practice Review Force and Motion-2 practice

### Utah

UT.3.III.2.b Compare and chart the relative effects of a force of the same strength on objects of different weight (e.g., the breeze from a fan will move a piece of paper but may not move a piece of cardboard).
 Floating Cups video Water in a Glass, part 2 video Water in a Glass, part 3 video Water in a Glass, part 1 video High Bounce video Review Force and Motion-1 practice Review Force and Motion-2 practice

### NGSS

MS-PS2-2 Plan an investigation to provide evidence that the change in an object’s motion depends on the sum of the forces on the object and the mass of the object.
 Bernoulli Effect video Floating Cups video The Difference Between Weight and Mass video Torque video Water in a Glass, part 2 video Water in a Glass, part 3 video Water in a Glass, part 1 video Newton's First Law of Motion video, ClosedCaptions Obedient Coin video Wrong Way Balloon video Strange Flame, part 2 video Strange Flame, part 1 video Science Friction video Raw Egg or Boiled? video More Science of Balance video Science of Balance video The Old Tablecloth Trick video Smoke Rings video Balancing a Meter Stick text page Review Force and Motion-4 practice Review Force and Motion-1 practice Review Force and Motion-2 practice