Energy and Work
Presentation
•
Science
•
7th Grade
•
Practice Problem
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Hard
Standards-aligned
Leonardo Rodriguez Leon
Used 6+ times
FREE Resource
2 Slides • 6 Questions
1
Contest worth points. MUST BE DEVELOPED IN THE NOTEBOOK!!!!
2
Fill in the Blanks
If an object is falling, the gravity affects it. It is a force, thus the energy the object has can be calculated as gravitational potential energy. write the equation of it.
Type answer...
3
Multiple Select
A bag (13Kg) is carried by a girl over a hill (12m), by accident she let go the bag over the cliff at the top of the hill. Does it have Gravitational potential energy? if so, how much is it?
1528,8 J
1528,8 N
It does not have gravitational potential energy
1528,8 s2kg×m2
4
Fill in the Blanks
The equation to calculate Work is:
Type answer...
5
Open Ended
Maria is pushing the wall, how much is the work applied to it?
6
Multiple Choice
Kinetic energy is the energy of motion, its equation is:
KE = 21m×v
KE =21v ×m2
KE = 21m ×v2
KE = 2m ×v2
7
Fill in the Blanks
Karly is running thorugh the hallway. The teacher meassures her velocity towards her direction being 20 m/s. She stops the student and asks her for her mass, Karly answers 50kg. The teacher then tells her that she was using
Type answer...
8
Diagram forces
Model a box that has two forces acting on it, 12 N to the right and 4N to the left. Also model the gravity. Remember the knowledge of direction and velocity to do so.
Contest worth points. MUST BE DEVELOPED IN THE NOTEBOOK!!!!
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