3rd Grade Forces and Motion worksheets

Forces and Motion

Grade 3 Science Worksheet

Circle the answer.

1. 1.

   A box is pushed with 10 units of force from the left and 10 units from the right. What happens?

   • it stays still, because the forces are balanced
   • it moves up, because the forces meet
   • it moves left, because the left push wins
   • it moves right, because the right push wins
2. 2.

   A box is pushed with 15 units from the left and 5 units from the right. Which way does it move?

   • it spins in place
   • to the right
   • to the left
   • it stays still
3. 3.

   A ball rolls across a floor and slowly stops. Why?

   • gravity pushes it backward
   • air pushes it to the side
   • the ball runs out of push inside it
   • friction from the floor slows it
4. 4.

   A pendulum takes 2 seconds to swing over and back. How long will 3 swings over and back take?

   • 5 seconds
   • 6 seconds
   • 2 seconds
   • 3 seconds
5. 5.

   Which change will make a book stop sooner when it slides across a table?

   • waxing the table smooth
   • pushing the book harder
   • putting a rough towel on the table
   • sliding it on smooth glass
6. 6.

   Two children ride a seesaw. When one end goes up, what does the other end do?

   • it spins around
   • it stays still
   • it goes down
   • it goes up too
7. 7.

   A marble rolls back and forth in a bowl. Each time it goes a little less high up the side. What will happen if no one pushes it?

   • it will roll higher each time
   • it will stop near the top
   • it will stop at the bottom
   • it will roll out of the bowl
8. 8.

   Team A pulls a rope with 50 units of force. Team B pulls with 70 units. What happens?

   • the rope breaks in the middle
   • the rope moves toward Team A
   • the rope stays still
   • the rope moves toward Team B
9. 9.

   Which is an example of balanced forces?

   • a ball rolling faster down a hill
   • a wagon speeding up when pulled
   • a kicked ball changing direction
   • a book resting on a table
10. 10.

    A ball is dropped from 1 meter and from 2 meters. Which one is moving faster when it lands?

    • the ball from 2 meters
    • neither, they float down
    • the ball from 1 meter
    • both at the same speed