Force and Motion

Brad and Chris are playing with a soccer ball at recess. As the ball rolls towards Chris, he kicks it.

Which of these will NOT change after the ball leaves Chris's foot?

• Position

• Speed

• Direction

• Mass

What will always change when an object is in motion?

• Mass

• Speed

• Position

• Direction

Padrick is playing baseball. The pitcher throws the ball, and Padrick prepares to hit the ball with his bat. What is the ball doing right before Padrick hits it?

• It is changing direction

• It is changing its position

• It is slowing to a stop

• It is speeding up

Amari and Chaleah are playing marbles. Amari rolls her marble toward the target, but it suddenly moves to the left and misses the target. Chaleah looks at the ground and sees a small pebble where the marble was rolling. Which change did the pebble cause in the marble?

• The pebble caused the marble to stop its motion

• The pebble caused the marble to speed up

• The peddle caused the marble to bounce up

• The pebble caused the marble to change direction

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Kayla does a science experiment in which she rolls a ball down a ramp to determine its speed. She conducts three trials and measures the distance that the ball rolls. Her teacher tells Kayla that she needs to measure on other factor to find the speed of the ball. What other factor does Kayla need to measure to determine the speed of the ball?

• Time

• Position

• Direction

• Energy

Tags

NGSS.MS-PS3-1

A battery powered car moving on the floor hits a wall. If the car has not stopped moving, what change has taken place in the car's motion?

• Mass

• Direction

• Energy

• Time

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What conclusion can Jamie make about the speed of the soccer ball?

• The speed of the soccer ball increased and traveled at a constant speed.

• The soccer ball went faster as time went by.

• The speed of the soccer ball decreased and then traveled at a constant speed.

• The soccer ball went slower as time went by.

Tags

NGSS.MS-PS3-1

Jerell is at the bowling alley and is wondering how he could figure out the speed of the ball as he rolls it down the lane towards the pins.

Which two tools would he need to find the speed of the bowling ball?

• Ruler and a thermometer

• Graduated cylinder and a scale

• Scale and a thermometer

• Meter stick and a stopwatch

Tags

NGSS.MS-PS3-1

What conclusion can the students make about the speed of the car as it traveled down the ramp?

• The car moved at a constant speed as it traveled down the ramp.

• The car moved at different speeds as it traveled down the ramp.

• The car moved slowest at the bottom of the ramp.

• The car moved fastest at the top of the ramp.

Tags

NGSS.MS-PS3-1