RC#2 Force, Motion & Energy

RC#2 Force, Motion & Energy

Multiple Choice

energy that travels in waves/vibrations

• light

• energy

• sound

• thermal

Multiple Choice

energy used to see and that solar panels transform and plants use in photosynthesis

• light

• thermal

• sound

• electrical

Multiple Choice

Energy that causes a transfer of heat between materials

• thermal

• elecgtrical

• mechanical

Multiple Choice

Energy produced by a machine or moving part

• thermal

• electrical

• mechanical

Multiple Choice

Energy is

• the ability to cool

• what is needed to do work or cause change

• what stops motion

Multiple Choice

Energy is

• the ability to cool

• what is needed to do work or cause change

• what stops motion

Multiple Choice

Brayson made the circuit shown here in his science class. What is the most likely reason that the bulb is not lit?

• The bulb is cracked.

• He did not use the right size battery.

• He used too many pieces of wire.

• He left the switch open.

Multiple Choice

A fifth grade class constructed this circuit.  Which of these objects most likely made the light glow when connected to points X and Y?

• plastic straw
• cotton string
• aluminum foil
• rubber eraser

Multiple Choice

In the picture, if you replace the paper clip with a plastic spoon, what happens? 

• The bulb doesn't light
• The bulb is dimmer
• The wires get hot
• There is no charge

Multiple Choice

When a circuit is open, the circuit is _________?

• On

• Off

Multiple Choice

A student builds a circuit made up of a battery, two light bulbs, and a switch. What will the student most likely observe in this circuit?

• Light bulb 1 and light bulb 2 will both be on

• Light bulb 1 will be off, but light bulb 2 will be on

• Light bulb 1 and light bulb 2 will both be off

• Light bulb 1 will be on, but light bulb 2 will be off

Multiple Choice

How does light travel?

• It scatter

• In straight lines

• Zigzag lines

• Curved lines

Multiple Choice

The picture shows a child standing in a swimming pool. Why does the lower part of the child appear so much different in size from the upper part? (5.6C)

• The light rays that travel through water and then into air are refracted.

• The light rays that travel through water and then into air are enlarged.

• The light rays that travel through air and then into water are reflected.

• The light rays that travel through air and then into water are reduced.

Multiple Choice

Which of these best demonstrates the reflection of light? (5.6C)

• Looking through the glass of a large window

• Looking at an image formed on a silver spoon

• Looking at a lightbulb that is glowing

• Looking at a star on a clear night

Multiple Choice

When light hits an object such as black paper, it will get taken in, or ______________________.

• reflected

• refracted

• transmitted

• absorbed

Multiple Choice

Light tends to ______________________, or go through transparent objects.

• reflect

• refract

• transmit

• absorb

Multiple Choice

Light hitting a mirror and bouncing off is an example of _____________________.

• reflection

• refraction

• transmission

• absorption

Multiple Choice

Light hitting a mirror and bouncing off is an example of _____________________.

• reflection

• refraction

• transmission

• absorption

Multiple Choice

When conducting an experiment, in order to get reliable results, it is important to:

• Disregard results that do not match your hypothesis
• Test many different variables at the same time
• Test all forces at the same time
• Repeat the investigation several times

Multiple Choice

Looking at the picture, what two tools would be needed to measure the effect of friction on the ball?

• Hand lens and balance
• Balance and spring scale
• Measuring tape and stop watch
• Spring scale and hand lens

Multiple Choice

When designing an experiment, why is it important to test only one variable?

• Testing one variable explains what  caused the change once data has been gathered.
• Testing one variable collects inaccurate data and repeats the investigation more than necessary.
• Testing one variable decreases the reliability of the investigation.
• It is not necessary to test only one variable.

Multiple Choice

Which experiment listed below will best determine how friction affects the speed of a rolling object?

• Roll 3 objects of various sizes across the floor.
• Roll 3 objects of equal size from various heights across the floor.
• Roll 3 objects of equal size across 3 different types of surfaces.
• Roll 3 objects of equal size from equal heights across the floor.

Multiple Choice

A polar bear slides down an ice covered hill. As he slides, he slows down. Eventually he comes to a stop. What force  acts on an object to slow or stop its motion?

• Speed
• Friction
• Gravity
• Direction

Multiple Choice

A student uses a spring scale to pull a 50-gram block horizontally across a wood desk. Then the student pulls the block the same distance across surfaces of carpet, sandpaper, and glass. What is a reasonable conclusion to this investigation?

• More mass will require more force to pull it.

• More mass will require less force to pull it.

• Smoother surfaces will decrease the amount of force needed.

• Rougher surfaces will decrease the amount of force needed.

Multiple Choice

A force that happens when rubbing objects together

• magnetism

• force

• gravity

• friction

Multiple Choice

A push or a pull

• magnetism

• speed

• force

• friction

Multiple Choice

A push or a pull

• magnetism

• speed

• force

• friction