This question has two parts. First, answer Part A. Then, answer Part B.
Two students are investigating force. In this experiment, the students place cardboard ramps on different stacks of books. The students measure how far that cars with the same mass will travel when released from the top of the ramp. The set up the students use is shown below.
Part A
Which question is the group best trying to answer with this experiment? __________
Part B
Why is the length the car travelled different in each trial? __________
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A student wants to experiment to determine how the height of a ball dropped in a box of sand will affect the crater size it will make in the sand.
What other piece of equipment will be most useful in conducting this experiment?
graduated cylinder for volume
triple beam balance for mass
stopwatch for time
meterstick for length
A student wanted to test the effect of friction on a toy car rolling down a ramp. She has constructed the ramp with five lanes, each covered with a textured material.
She rolled a toy cart down each lane and used a timing device to measure the length of time it took the cart to reach the end of the ramp. Her results are shown in the chart below.
Refer to the information above. What conclusion could the student make based on this experiment?
The force of friction is greatest on the wood.
The force of friction is least on the sandpaper.
The force of friction is least on the tile.
The force of friction is not affected by material.
A student pushes a wagon, and it begins to move in the direction shown. Describe the forces acting on the wagon.
The forces are equal because the wagon starts to move.
The forces are unequal because the wagon starts to move.
The force of gravity is pulling the wagon forward.
The metal parts of the wagon are attracted to a magnet.
The force of friction was less on the left so the box moved to the right.
What can be said about the effect of the force being applied by the student on the left?
The force of magnetism was greater on the left so the box moved to the right.
The pull of gravity was greater on the right so the box moved to the right.
The pushing force was greater on the left so the box moved to the right.
The force of friction was less on the left so the box moved to the right.
Which type of force will not change the motion of an object?
Gravitational forces
Unequal forces
Magnetic forces
Equal forces
Two students want to move a cart full of bricks. Which actions will make moving the cart in one direction the easiest for the students?
Student 1 pushes the cart to the right, and student 2 pulls the cart to the right.
Student 1 pulls the cart to the left, and student 2 pulls the cart to the right.
Student 1 pushes the cart to the right, and student 2 pushes the cart to the left.
Student 1 pulls the cart to the left, and student 2 pushes the cart downward.
Which term best describes the forces acting on the box shown?
Unequal
Gravity
Equal
Unbalanced
Students use a spring scale to measure the differences in force when a block is moved across smooth and rough surfaces. What unit of measurement should the students use when recording the data?
Centimeter
Celsius
Newton
Gram
Describe the motion of the box shown based on the forces that are being applied to it.
The box will move toward the right.
The box will move toward the left.
The box will not move at all.
The box will move down toward Earth.
Which direction will the ball move after the student kicks the ball?
Northwest
Northeast
Southwest
Southeast
Select the two statements that are true about this tug-of-war game.
The forces are equal.
The forces are unequal.
The players will move toward the left.
The players will move toward the right.
The players will not move.
The table shown describes examples of different forces. Identify the force described in each column.
Drag the correct answer to each box.
Gravity
Friction
Magnetism
An iron nail moves toward an object located 10 cm away.
Two sticks are rubbed together to start a fire.
An acorn detaches from a tree and falls to the ground.
Which type of surface increases friction?
Rough
Smooth
Wet
Slippery
A student watches a ball roll off the table.
Which arrow represents the force that causes the ball to begin the motion?