Investigation
Tools
Which Force Is It?
Investigation 2
Forces
100

What items could be used to investigate the strength of different magnets?

Magnets, iron nails, triple beam balance

100

Students are conducting an investigation that tests the force of a magnet by using one magnet to repel a second magnet. Which tool would be needed to measure the distance the second magnet moves?

A ruler

100

Students wanted to investigate if water balloons dropped from greater heights made larger splatters. This experiment is an investigation of the effect of which of the following?

Gravity

100

Which of the following describes the best way to investigate the strength of several different magnets? 

A Place each magnet in water to see if it sinks.
Count how many paper clips each magnet can pick up.
C Use tools to measure the mass and length of each magnet.
D Place the magnets near each other to see how they move.

Count how many paper clips each magnet can pick up.

100

Students conducted an investigation in which they rolled marbles across different surfaces to measure the effect of the force of friction on each surface. 

Friction slows down and stops objects. Which of the surfaces investigated showed the greatest amount of friction?

Surface A

200

Students rolled a baseball down a ramp and measured the distance it traveled on three different surfaces.

What question could they be trying to answer? 

How does friction change how far a baseball rolls

200

Which two tools below would be most useful in investigating how the mass of an object can affect the distance it moves with a push? 

A Spring scale and hot plate
Balance and meter stick
C Graduated cylinder and beaker
D Magnet and thermometer

Balance and meter stick

200

By changing the surface over which a ball rolls, students could investigate the effect of what type of force?

Friction

200

Which of the following is a question about forces that could be explored in a laboratory investigation? 

A Which airplane design is best?
How does friction affect the motion of a rolling ball?
C Does gravity work in all parts of the universe?
D What kind of magnet is the fastest?

How does friction affect the motion of a rolling ball?

200

This game of tug of war is an example of _________ forces. 

Unbalanced

300

Students performed an experiment in which they rolled toy cars with different masses down the same ramp three times.

Which testable question could the students be investigating?

300

Which of the following describes the best way to investigate the strength of several different magnets?

Metric Ruler

300

Students are investigating the effects of different surfaces (tile, wood, and carpet) on the time it takes a toy car to roll two meters. The students are measuring the effect of which of the following forces?

Friction

300

Students collected the following data in an investigation: 

Which question would the students be able to answer with the data? 

A What is the physical force that makes a top spin
How does a top’s mass affect how long it spins?
C What color top spins for the shortest amount of time?
D Why does a top stop spinning after one minute?

How does a top’s mass affect how long it spins?

300

On which surface will a toy car travel the furthest? 

A Carpet
Polished Wood
C Ice

C Ice

400

Students performed an experiment in which they rolled toy cars with different masses down the same ramp three times.

Which testable question could the students be investigating?

Does the mass of a toy car affect the distance it travels?

400

What unit is mass measured in?

Grams

400

What is Force?

A push or a pull on an object

400

Students performed an investigation in which they tied three washers to different lengths of string. They hung the washers off the edge of a desk and timed how long it took the washers to swing back and forth one time. 



The data support which of the following conclusions? The time to swing back and forth increases with– 

A more washers.
B shorter string.
C fewer washers.
longer string.

longer string.

400

Friction is a force that acts in an ___________ direction of movement. 

Similar
Opposite
Parallel
West

Opposite

500

Students have short and tall ramps, and toy cars with which to create an investigation. Which of the following is a testable question they could answer in an investigation using these materials? 


A What kind of material should be used to make roads?
B What kind of toy car is the overall best kind to buy?
How does ramp height affect the distance the toy car rolls?
D What kind of scientist can best explain how cars work?

How does ramp height affect the distance the toy car rolls?

500

What is the unit used to measure force?

Newtons 

500

What force has both a push and a pull depending on what object is placed near it?

Magnetism

500

Students conducted an investigation in which they rolled marbles across different surfaces to measure the effect of the force of friction on each surface.

Friction slows down and stops objects. Which of the surfaces investigated showed the greatest amount of friction?

Surface A

500

What is Movement?

Motion