PS.5.2.1

The diagram below shows the movement of two golf balls. Golf balls A and B were struck with the same force. What force is greater on ball B?

• distance

• friction

• mass

• velocity

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Lacy is pulling a wagon full of rocks. As she sees more rocks, she picks them up and places them in the wagon. Which will most likely happen to the force required to move the wagon?

• The force needed to move the wagon will remain the same.

• The force needed to move the wagon will decrease.

• The force needed to move the wagon will increase.

• The wagon will no longer move.

Tags

NGSS.MS-PS2-2

Jack is skateboarding, and his friend Fred jumps on the back of the skateboard. What will most likely happen to the speed at which the skateboard is traveling?

• The speed of the skateboard will increase because of a decrease in mass.

• The speed of the skateboard will increase because of an increase in mass.

• The speed of the skateboard will decrease because of a decrease in mass.

• The speed of the skateboard will decrease because of an increase in mass.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

Which best explains why it is difficult for cars to slow down when the roads are wet?

• There is less friction between the tires and road.

• There is more friction between the tires and road.

• There is less gravitational pull between the car and the road.

• There is more gravitational pull between the car and the road.

A toy car rolls across an icy flat surface. Which would best explain how the car’s motion changes?

• The car and ice rub against each other causing the car to slow down.

• The car and ice rub against each other causing the car to speed up.

• The ice has no friction and the car continues at the same speed.

• The ice has no gravity and the car continues at the same speed.

Tags

NGSS.MS-PS2-2

Jamie dropped a ball and let it bounce several times. Jamie observed that the ball bounced much higher on the first bounce than on the third bounce. Which force was most likely responsible for this?

• friction

• gravity

• heat

• wind

Tags

NGSS.MS-PS2-2

Four cubes made of different materials are moving down a plastic slide. Which cube would experience the greatest amount of friction?

• the cube made of ice

• the cube made of sandpaper

• the cube made of smooth plastic

• the cube made of polished stone

Chuck is delivering mail using a mail cart. He walks along the sidewalk at a constant speed. What will most likely be needed to keep the cart moving at the same speed if two additional large bundles of mail are added to the cart?

• a decrease in the force pushing the cart

• an increase in the force pushing the cart

• a decrease in the amount of friction affecting the cart

• an increase in the amount of friction affecting the cart

Tags

NGSS.MS-PS2-2

The chart below shows four identical wagons loaded with different amounts of bricks: Wagon W: two pounds of bricks, Wagon X: three pounds of bricks, Wagon Y: four pounds of bricks, Wagon Z: five pounds of bricks. If the same amount of effort is applied to all four identical wagons, why would Wagon W move farthest?

• It has the least amount of mass, affecting its motion.

• It has the least amount of speed, affecting its motion.

• It has the greatest amount of gravity, affecting its motion.

• It has the greatest amount of friction, affecting its motion.

Tags

NGSS.MS-PS2-2

Chris climbs onto a skateboard ramp halfway between the top and the bottom of the ramp. Because gravity acts on Chris, which is most likely to happen?

• He won’t move.

• He will roll up the ramp.

• He will roll down the ramp.

• He will float above the ramp.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4