Force, Motion, and Energy

What is the force that slows down or eventually stops an objects motion?

• Gravity

• Push

• Motion

• Friction

Tags

NGSS.3-PS2-1

A student designs an experiment to test the force of a spring using a spring launcher and four spheres with the same diameter but with different masses. What other piece of equipment would be most useful for this experiment? (5.6D)

• A graduated cylinder to measure the volume of each sphere before the sphere is launched

• A beaker to collect the spheres after they are launched

• A stopwatch to measure how long it takes to load each sphere on the spring

• A meterstick to measure the height each sphere reaches after the sphere is launched

Tags

NGSS.3-PS2-1

NGSS.3-PS2-2

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.

Tags

NGSS.3-5-ETS1-3

NGSS.3-PS2-1

Which word describes a push or pull on an object?

• Position
• Hypothesis
• Mass
• Force

Tags

NGSS.3-PS2-1

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

Tags

NGSS.3-PS2-1

A student drops a ball from shoulder height. The ball bounces 5 times before coming to a stop. What force causes the ball to fall to the ground?

• Friction
• Magnetism
• Position
• Gravity

Tags

NGSS.3-PS2-1

NGSS.5-PS2-1

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

Tags

NGSS.3-5-ETS1-3

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

Tags

NGSS.3-PS2-1

NGSS.3-PS2-2

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.

Tags

NGSS.3-5-ETS1-3

Students wrap a copper wire around an iron nail and connect the ends of the wire to the battery. The nail attracts other small nails and paper clips as they stick together. What force is being observed?

• The students are observing the force of gravity.
• The students are observing the force of friction.
• The students are observing the force of magnetism.
• The students are observing the force of electricity.

Tags

NGSS.3-PS2-3