Quiz about Force

Question 1

Why is it harder for the boy in Image B to get down the hill?

Accepted Answer

Friction

Answer

Motion

Answer

Work

Answer

Displacement

Question 2

How is gravity affected by mass?

Accepted Answer

the larger the mass of the object, the greater the gravity

Answer

small objects have no gravity

Answer

gravity is not affected by mass of objects, whether large or small

Question 3

Why does a rolling ball stop?

Accepted Answer

Friction

Accepted Answer

Gravity

Answer

Waterfalls

Answer

Sand

Question 4

1.  It is easier to ride a bicycle down a hill than to ride up a hill because _______ helps the bicycle move down the hill.

Accepted Answer

gravity

Answer

friction

Answer

rotation

Question 5

What is a force that works AGAINST MOTION?

Accepted Answer

Friction

Answer

Force

Answer

Motion

Answer

Gravity

Question 6

A greater applied force is required to move an object with a greater mass than one with a smaller mass.

Accepted Answer

True

Answer

False

Question 7

True or False: Your hypothesis can never be wrong.

Accepted Answer

False

Answer

True

Question 8

Should experiments be repeated over and over to see if the results are the same each time?

Accepted Answer

yes

Answer

no

Question 9

Mrs. Gibson creates an experiment with different heights of ramps to see which height makes a toy car travel farther. What is the variable?

Accepted Answer

Height of the ramp

Answer

Size of the car

Answer

Distance the car travels

Answer

Surface of the ramp

Question 10

Students drop 4 different sized blocks into sand from different heights to see which height makes a larger dent in the sand. How can they improve this experiment?

Accepted Answer

Use the same sized blocks

Answer

Use more blocks

Answer

Use sugar instead of sand

Answer

Use different colored blocks to see better

Question 11

Students roll toy cars down the same ramp with different coverings like carpet, foil, and sandpaper. What are they trying to test?

Accepted Answer

How does the surface of a ramp affect the distance a car will roll?

Answer

How does the height of a ramp affect the distance a car will roll?

Answer

How does the mass of the car affect the distance a car will roll?

Answer

How does the surface of a ramp affect how fast a car will travel?

Question 12

In order to test friction, what is needed for the investigation?

Accepted Answer

Several ramps with different surfaces

Answer

Several ramps of different heights

Answer

Several cars of different masses

Answer

Several cars of different speeds

Question 13

How could you test the strength of two magnets?

Accepted Answer

See which will lift more iron nails

Answer

Use a Spring Scale to see which has more force

Answer

Measure to see which is larger

Question 14

Mr. Buis would like to have a really fast slide in the school back area. What material should he use?

Accepted Answer

Metal

Answer

Wood

Answer

Styrofoam

Answer

Bumpy Plastic

Question 15

Students are pulling a spring scale across a table with a block of wood behind it. If they are testing the affect of friction on the force needed to pull the block, what should their variable be?

Accepted Answer

Different surfaces on the table

Answer

Different masses on the block of wood

Answer

Different sized spring scales

Answer

Different heights of the table tops

Question 16

Would a spring scale measure more force pulling an object across carpet, wood, or sandpaper?

Accepted Answer

Sandpaper

Answer

Carpet

Answer

Wood

Question 17

Which metal can be attracted to magnets?

Accepted Answer

Iron

Answer

Copper

Answer

Aluminum

Answer

Gold

Question 18

Which force is so low that it causes the man to slip and fall?

Accepted Answer

Friction

Answer

Gravity

Answer

Air Resistance

Answer

Motion

Question 19

The one variable in an experiment that is purposely changed by the scientist is the________________.

Accepted Answer

independent variable

Answer

dependent variable

Answer

data

Answer

control group

Question 20

A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent variable, or data gathered, is the _____.

Accepted Answer

Height that the ball bounces

Answer

Diameter of the ball

Answer

Force acting on the ball

Answer

Height from which the ball is dropped

Question 21

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...

Accepted Answer

The type of liquid

Answer

The type of plant

Answer

The amount of sunlight

Answer

The type of music

Question 22

Observations made during an experiment are called:

Accepted Answer

data

Answer

problems

Answer

conclusions

Answer

questions

Question 23

Mr. Salazar set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable.

Accepted Answer

Mass of the ball

Answer

Distance traveled by the ball

Answer

Height of the ramp

Question 24

What are all the things that are kept the same in an experiment?

Accepted Answer

constants

Answer

controls

Answer

data

Answer

independent variables

Question 25

How many variables can be tested in a controlled experiment?

Accepted Answer

one

Answer

two

Answer

three

Answer

as many as possible

Question 26

A student performed an experiment that tested how many days it takes different types of grass seed to grow to a height of two inches. Four types of grass seed were tested, and the student recorded the number of days for each type to grow. Use this information to answer the next question.

What should be held constant in this experiment?

Accepted Answer

amount of sunlight, amount of water, and type of soil

Answer

amount of sunlight

Answer

amount of water and type of soil

Answer

amount of water

Question 27

A student is studying the effect of sunlight on plants. The student developed this hypothesis: Plants need light to make food and to grow properly. To conduct a controlled experiment, which method should she use?

Accepted Answer

Choose two identical plants; put one in the dark and one near sunlight; use the same amount of water; water both regularly

Answer

Choose a healthy plant; put it in a dark place; use clean water; water the plant regularly.

Answer

Choose two identical plants; put each in the dark for 12 hours and then light for 12 hours; use the same amount of water; water both regularly.

Answer

Choose three identical plants; put one in the dark, one near sunlight, and one in the shade, water only the plant in light.

Question 28

Choose the hypothesis from below.

Accepted Answer

If objects are closer together, then there will be a stronger gravitational force.

Answer

The golf ball hit the ground before the paper.

Answer

Why would mass affect gravity?

Answer

I think bigger objects have more gravity.

Question 29

Which is a good hypothesis?

Accepted Answer

If I drop the same golf ball from different heights, the higher the height, the larger the crater made in the sand.

Answer

If I drop the golf ball, gravity will take over.

Answer

If I drop different sized golf balls into different liquids, I will get all the same sized splashes.

Answer

If I drop different sized balls from different heights, the larger the ball, the bigger the crater in the sand.

Force

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