FOSS GKE Investigation 3

A soccer ball is sitting still on a flat field. What forces are acting upon it? Draw the arrow(s) showing the force(s) and label them with the name(s) of the force(s).

Tags

DCI.PS2.A.6-8.2

CCC.2

If a player kicks a soccer ball once and it moves across the grass, how would Sir Isaac Newton explain what happens to the ball?

The kick is a ​​ (a)   which acts on the ball to make it ​ ​ (b)   and move. The ​ (c)   of the air and grass will make it ​ (d)   until it stops.

• force
• accelerate
• friction
• decelerate
• movement
• action

Tags

DCI.PS2.A.6-8.2

A bowling ball is rolling down a ramp with a certain amount of kinetic energy.

Which change to the system will increase the ball’s kinetic energy most?

• Doubling the weight of the bowling ball

• Doubling the mass of the bowling ball

• Doubling the speed of the bowling ball

• Doubling the volume of the bowling ball

Tags

CCC.2

DCI.PS3.A.6-8.3

The ball in the diagram is held at the start position. When

released, it rolls down the ramp, travels up the other side to

position 1, then rolls back down the ramp.

Fill in the blanks to describe how potential and kinetic

energy is transferred in this situation.

At the start, the ball had ​ (a)   energy, which transferred to ​ (b)   energy as it rolled down the ramp. When the ball reached its highest point on the other side of the ramp, all its energy transferred to ​ (c)   energy.

• potential
• kinetic

Tags

MS-PS3-2

MS-PS3-5

CCC.5.6-8.9

A motor boat is traveling 10 m/s on a sunny calm day. The driver turns off the engine.

Apply Newton’s first law to explain what happens to the boat as it glides through the water.

• The boat moves slower and slower.

• The boat moves at a constant speed.

• The boat moves at constant speed for a while and then slows down.

• The boat slows down for a while and then moves at constant speed.

Tags

DCI.PS2.A.6-8.2

CCC.2

CCC.7

Why does the boat slow down? You may choose more than one.

• The wind that was pushing the boat has stopped.

• With the engine off, there is no force pushing the boat.

• Friction with the water causes the boat to decelerate.

• It doesn't. The boat will move at a constant speed since the engine is not making it accelerate.

Tags

DCI.PS2.A.6-8.2

SEP.3.6-8.5

CCC.2.6-8.6

MS-PS2

While playing hockey, player 1 (white jersey) is speeding down the rink, and doesn't see player 2 (blue jersey) standing still on the ice. Player 1 collides with player 2.

Explain what happens to the kinetic energy and motion of each player during the collision.

Tags

SEP.3.6-8.4

MS-PS2-1

A teacher throws a tennis ball straight up into the air. At what point does the ball have the most potential energy?

• Right after the ball leaves the teacher’s hand

• As the ball begins to slow down

• Just before the ball hits the ground

• When the ball is at its highest position

Tags

DCI.PS2.B.6-8.3

MS-PS3-2

CCC.4

A teacher throws a tennis ball straight up into the air. At what point does the ball have the most kinetic energy?

• Right after the ball leaves the teacher’s hand

• As the ball begins to slow down

• Just before the ball hits the ground

• When the ball is at its highest position

Tags

DCI.PS2.B.6-8.3

MS-PS3-2

CCC.4

Select all of the responses that are true about how the Earth causes changes in the ball's kinetic and potential energy.

• Earth's gravity is the force that gives the ball its potential energy.

• The farther from the Earth's surface, the greater the potential energy.

• Gravity increases the kinetic energy as the ball falls toward Earth.

Tags

DCI.PS2.B.6-8.3

CCC.4

SEP.3.6-8.5