by BlastRoom
Read and interpret graphs and tables relating a moving object's kinetic energy to its mass and its speed.
#us_grade_8_science

40 questions
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Answer to place stones and capture territory.
Outrun the snow together.
Earn blasts, then hunt the other team.
Answer to earn energy, then climb.

The class blasts through walls together.
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Sell tours. Nice, standard, or a total scam.
Answer, restock, and serve the rush.
More correct answers pulls the rope your way.
Answer, then shoot down the alien wave.
Answer, then tap to leap the frozen ridge.
A curve plots kinetic energy against speed for a 4 kg cart, passing through (2 m/s, 8 J) and (4 m/s, 32 J). What is the cart's kinetic energy at 3 m/s?
A curve plots the kinetic energy of a 2 kg drone against its speed, passing through (3 m/s, 9 J) and (6 m/s, 36 J). Reading the curve at 4 m/s gives what energy?

A 5 kg bowling ball's kinetic energy is graphed against its speed. The curve passes through (2 m/s, 10 J) and (6 m/s, 90 J). How much kinetic energy does the ball have at 4 m/s?

For an 8 kg medicine ball, a graph of kinetic energy against speed passes through (1 m/s, 4 J) and (3 m/s, 36 J). The ball rolls at 2 m/s. What energy does the curve show there?
A loaded sled of mass 10 kg has its kinetic energy plotted against speed. The curve passes through (2 m/s, 20 J) and (6 m/s, 180 J). What is its kinetic energy at 4 m/s?

A 1.5 kg ball's kinetic energy is graphed against speed, through (2 m/s, 3 J) and (6 m/s, 27 J). The ball is thrown at 4 m/s. What kinetic energy does the graph give?
A curve of kinetic energy against speed for a 6 kg cart passes through (1 m/s, 3 J) and (4 m/s, 48 J). What value does the curve give at 3 m/s?
A 0.4 kg hockey puck has its kinetic energy plotted against speed, through (5 m/s, 5 J) and (15 m/s, 45 J). At 10 m/s, what kinetic energy does the curve show?
A loaded wheelbarrow of mass 12 kg has kinetic energy graphed against speed, through (1 m/s, 6 J) and (3 m/s, 54 J). What is its kinetic energy when it moves at 2 m/s?

A 20 kg rowboat's kinetic energy is plotted against speed, through (2 m/s, 40 J) and (6 m/s, 360 J). The boat speeds up to 4 m/s. What energy does the curve give there?
A straight line through the origin plots kinetic energy against mass for objects moving at 4 m/s. It passes through (3 kg, 24 J). What is the kinetic energy of a 7 kg object at 4 m/s?
Kinetic energy is plotted against mass for objects all moving at 6 m/s. The straight line from the origin passes through (2 kg, 36 J). How much kinetic energy does a 5 kg object have?
For carts all rolling at 2 m/s, kinetic energy against mass is a straight line from the origin through (5 kg, 10 J). Reading that line at 12 kg gives what kinetic energy?

Objects thrown at 10 m/s have kinetic energy plotted against mass as a straight line through the origin and through (1 kg, 50 J). What kinetic energy does a 3.5 kg object have at 10 m/s?
A line through the origin plots kinetic energy against mass at a fixed speed of 3 m/s, passing through (6 kg, 27 J). A 14 kg crate slides at 3 m/s. What is its kinetic energy?
At a fixed speed of 8 m/s, kinetic energy against mass is a straight line from the origin through (2 kg, 64 J). What does the line give for a 9 kg object?
Kinetic energy against mass for objects at 5 m/s is a straight line through the origin and (4 kg, 50 J). An 11 kg object moves at 5 m/s. What is its kinetic energy?
For objects moving at 7 m/s, kinetic energy against mass is a line from the origin through (2 kg, 49 J). A 20 kg barrel rolls at 7 m/s. Reading the line gives what energy?
A loaded delivery van is driven first at 20 km/h and then, carrying the same load, at 40 km/h. How does its kinetic energy at 40 km/h compare with its kinetic energy at 20 km/h?

Two identical carts roll along a track at the same speed, but sand is added to one so its mass is doubled. How does the loaded cart's kinetic energy compare with the other cart's?

A female ice skater gliding at 8 m/s slows to 4 m/s without changing mass. Her kinetic energy at 4 m/s is what fraction of her kinetic energy at 8 m/s?

A boy pedals his bicycle at 3 m/s and later at 9 m/s. By what factor does the kinetic energy of the bicycle and rider change?

A truck's load is increased until its total mass is doubled, and it is also driven at double its earlier speed. Compared with before, its kinetic energy is now how large?
A pitcher throws a baseball at 4 m/s, then throws the same ball at 6 m/s. How does the kinetic energy of the faster throw compare with the slower one?
A water tank riding on a moving trolley is drained until the trolley's total mass is half of what it was. The speed does not change. The kinetic energy is now how large?
Which change makes a rolling cart's kinetic energy grow more: doubling its mass or doubling its speed?
As a rocket sled burns fuel its mass falls to half its starting value while its speed doubles. Compared with the start, its kinetic energy is now how large?
For one car, which speed increase adds more kinetic energy: going from 10 m/s to 20 m/s, or from 20 m/s to 30 m/s?
For one object whose mass does not change, which description matches a graph with kinetic energy on the vertical axis and speed on the horizontal axis?
Objects of many different masses all move at 5 m/s. Which description matches a graph with their kinetic energy on the vertical axis and their mass on the horizontal axis?
A student plots the kinetic energy of one 2 kg cart against the square of its speed. What shape does the plotted data take?
A student graphs kinetic energy against speed for one cart of fixed mass and draws a straight line through the origin. What is wrong with that graph?
Kinetic energy is plotted against mass for objects at 2 m/s, and again for objects at 6 m/s, on the same axes. How do the two straight lines compare?
Kinetic energy is plotted against speed on the same axes for a 2 kg ball and a 6 kg ball. How do the two curves compare?
Four moving objects: P (4 kg, 5 m/s), Q (10 kg, 3 m/s), R (2 kg, 8 m/s), S (8 kg, 3 m/s). Which object has the greatest kinetic energy?
A table lists four carts: A (5 kg, 2 m/s), B (1 kg, 6 m/s), C (2 kg, 4 m/s), D (10 kg, 1 m/s). Which cart has the least kinetic energy?
Four objects are recorded: E (8 kg, 3 m/s), F (2 kg, 6 m/s), G (4 kg, 4 m/s), H (9 kg, 2 m/s). Which two objects have equal kinetic energy?
Three objects move: T (2 kg, 10 m/s), U (5 kg, 6 m/s), V (20 kg, 2 m/s). Which order lists them from greatest to least kinetic energy?
A 3 kg cart moves at 6 m/s. Which object has more kinetic energy than the cart: N (10 kg, 3 m/s), O (6 kg, 4 m/s), W (2 kg, 8 m/s), or X (5 kg, 4 m/s)?
Four loaded carts race: cart A (9 kg, 2 m/s), cart B (4 kg, 5 m/s), cart C (16 kg, 1 m/s), cart D (1 kg, 12 m/s). Which cart carries the most kinetic energy?
Crack the passcode before the zombies get in.
Answer, then swat bugs for bonus points.
Race through questions at your own speed.
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Forces and Motion: Key Terms in Use
20 questions