Force and Motion

In a science lab, students measured how long it took for a block to slide down a ramp. What were the students comparing in this experiment?

• the amount of frictional force acting on the block

• the amount of gravitational force acting on the block

• the amount of frictional force acting on the ramp

• the amount of gravitational force

Tags

NGSS.MS-PS2-2

Four different students take turns pushing a large, heavy ball on the school parking lot. What is the BEST way to determine which student used the most force to push the ball?

• compare the sizes of the students

• compare the ages of the students

• compare the distances that the ball rolled

• compare the number of times the ball was rolled

Tags

NGSS.MS-PS2-2

Vincent is playing catch with a friend. When Vincent throws the ball, it travels in an arc-shaped path. The path of the ball is arc-shaped due to the force of Vincent's throw and what other force?

• friction

• gravity

• inertia

• magnetism

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

NGSS.MS-PS2-4

Allen pushes a toy car across three different surfaces. He pushes the car across a wooden floor, tile floor, and a carpeted floor. He notices it is hardest to push the toy across the carpeted floor. Which is the MOST likely reason it is hardest to push the car across the carpet?

• the car has more mass when it is on the carpeted floor.

• the carpet creates more friction than the other surfaces.

• the car is affected most by gravity on the carpeted floor.

• the carpet pushes more against the car than the other surfaces.

Ari had one ball and two ramps. The ramps were identical except that one had a sandpaper surface and one had a plastic surface. Ari measured how long it took the ball to roll down each ramp. Ari MOST likely was investigating the effect of which force on the speed of the ball?

• electricity

• friction

• gravity

• magnetism

Tags

NGSS.MS-PS2-2

Adrian makes a ramp out of some books and a plank of wood. He can change the height of the ramp by adding books under the plank. He rolls a toy car down each ramp. At the bottom of which ramp would the car be traveling the fastest?

• A

• B

• C

• D

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

NGSS.MS-PS3-2

Two balls rolled down two identical inclined planes. The balls were exactly the same mass and size, but one ball rolled down the inclined plane faster. Identify a possible reason that one ball rolled faster than the other ball?

• one ball was red and the other ball was blue

• one ball was new and the other ball was old

• one ball was shiny and the other ball was dull

• one ball was sticky and the other ball was smooth

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

A student uses a rubber band to launch the four objects listed in the answer choices.   If the student pulls the rubber band back the same amount each time, which object will MOST LIKELY move the fastest when launched?

• paper clip

• piece of paper

• eraser

• rubber ball

Tags

NGSS.3-PS2-1

NGSS.3-PS2-2

Four cars are at the starting line of a race. Which car will require the MOST FORCE to start moving?

• a car with mass of 1200 kilograms

• a car with mass of 1500 kilograms

• a car with mass of 1700 kilograms

• a car with mass of 2000 kilograms

Tags

NGSS.MS-PS2-2

Sam is building a car to race down a ramp. The car weighs 100 grams. Which could Sam do to increase the speed of the car?

• increase the mass of the car

• decrease the mass of the car

• increase the friction on the ramp

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-5