Which type of force moves the plow when the horse walks forward?

A push or pull on an object is an example of

A ball rolled toward Kara while she was playing soccer. If her foot kicks the ball as shown in the picture, which will most likely happen to the ball?

2 people need to move a large, heavy box. One person pulls the box while the other pushes the box. Which way of moving the box makes the work easiest for both people?

Workers push a heavy box up an inclined plane and onto a truck.

Which best explains why these workers use an inclined plane?

____ is the force that pulls items toward the Earth.

The force that acts against an object is ___.

Stairs are an example of an _____.

An ax is an example of a _____.

A window blind is an example of a _____.

A spinning chair is an example of a _____.

Which 2 simple machines does a wheelbarrow use?

Which of these is a compound machine with a lever and wedge working together?

A box is on the table. Maria and Julia push the box toward one another. If Maria pushes with more force than Julia, in which direction will the box most likely move?

Keely plays a game with a tower of blocks. She removes as many blocks as she can from the middle of the tower while it stays standing. The picture shows the tower at 2 different

times in the game.

Which best explains why the tower remains standing with blocks missing?

2 students are pushing on opposite sides of the box with equal force. This is considered zero net force.

Which statement describes what happens to the box at zero net force?

Tiana is using a lever to lift a rock.

To lift the rock most easily, where should she apply the force?

An escalator is a compound machine found in many buildings.

The stairway moves in a loop to help get people from one level to the next.

The stairway loop moves with the help of a wheel & axel.

The stairway is an example of what kind of simple machine?

The head of an ax is wide at one end and pointed at the

other to help cut or trim trees. The ax head is an example of ___.

George works in his school garden and needs to move a heavy rock.

He decides to use a shovel to move the rock.

What is the best way for George to use the shovel to lift the rock?