Force and Energy

What kind of energy is in a moving skateboard?

• Potential
• Kinetic

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

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.MS-PS2-2

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

Is this a balanced or unbalance force?

• Balanced
• Unbalanced
• Neither one
• Both

Tags

NGSS.MS-PS2-2

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

A fan is turned off in the living room. The fan slows down and comes to a rest as the forces become _______

• Frictional
• Balanced
• Unbalanced 
• Restricted

Tags

NGSS.MS-PS2-2

Looking at the roller coaster, were does the cart have the most potential energy?

• A
• B
• C
• D

Tags

NGSS.MS-PS3-2

Energy due to motion is ____________ energy. 

• Potential 
• Energy
• Kinetic
• Friction

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

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. Which question is this investigation most likely designed to answer? (5.6D)

• How do block of different sizes react to force?

• How do different surfaces affect the amount of force needed to move a block?

• How do blocks affect spring scales?

• How does the mass of a block change when it is pulled across a desk?

Tags

NGSS.MS-PS2-2

Calculate the net force of the object in the image shown.

• 20N
• 35N
• 5N
• 25N

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2