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When your bus driver slams on the brakes, your bookbag goes flying forward off your seat. Which of Newton's Laws explains this?
The large truck, because objects with greater mass have greater inertia.
Simple machines make work easier by changing the amount of force you need or the direction in which it is applied.
40 joules
You push a 20-kg box across the floor for ten meters.
An object traveling at a constant speed.
Newton's First Law: An object in motion will maintain its velocity unless acted on by an outside force.
10 N
Cars traveling at faster speeds have more momentum.
On a distance-versus-time graph, what does a straight diagonal line indicate?
The large truck, because objects with greater mass have greater inertia.
Simple machines make work easier by changing the amount of force you need or the direction in which it is applied.
40 joules
You push a 20-kg box across the floor for ten meters.
An object traveling at a constant speed.
Newton's First Law: An object in motion will maintain its velocity unless acted on by an outside force.
10 N
Cars traveling at faster speeds have more momentum.
Which would have greater inertia and why: a small car or a large truck?
The large truck, because objects with greater mass have greater inertia.
Simple machines make work easier by changing the amount of force you need or the direction in which it is applied.
40 joules
You push a 20-kg box across the floor for ten meters.
An object traveling at a constant speed.
Newton's First Law: An object in motion will maintain its velocity unless acted on by an outside force.
10 N
Cars traveling at faster speeds have more momentum.
Why do cars traveling at faster speeds require more time and force to stop than cars traveling at slower speeds?
The large truck, because objects with greater mass have greater inertia.
Simple machines make work easier by changing the amount of force you need or the direction in which it is applied.
40 joules
You push a 20-kg box across the floor for ten meters.
An object traveling at a constant speed.
Newton's First Law: An object in motion will maintain its velocity unless acted on by an outside force.
10 N
Cars traveling at faster speeds have more momentum.
You lift a 20-kg stack of books from the floor up to a shelf that is 2 meters high. How much work have you done?
The large truck, because objects with greater mass have greater inertia.
Simple machines make work easier by changing the amount of force you need or the direction in which it is applied.
40 joules
You push a 20-kg box across the floor for ten meters.
An object traveling at a constant speed.
Newton's First Law: An object in motion will maintain its velocity unless acted on by an outside force.
10 N
Cars traveling at faster speeds have more momentum.
Which of the examples below IS an example of work being done on an object?
The large truck, because objects with greater mass have greater inertia.
Simple machines make work easier by changing the amount of force you need or the direction in which it is applied.
40 joules
You push a 20-kg box across the floor for ten meters.
An object traveling at a constant speed.
Newton's First Law: An object in motion will maintain its velocity unless acted on by an outside force.
10 N
Cars traveling at faster speeds have more momentum.
Which statement best describes the advantage of using simple machines?
The large truck, because objects with greater mass have greater inertia.
Simple machines make work easier by changing the amount of force you need or the direction in which it is applied.
40 joules
You push a 20-kg box across the floor for ten meters.
An object traveling at a constant speed.
Newton's First Law: An object in motion will maintain its velocity unless acted on by an outside force.
10 N
Cars traveling at faster speeds have more momentum.
How much force is needed to accelerate a 5-kg bowling ball at a rate of 2 meters per second squared?
The large truck, because objects with greater mass have greater inertia.
Simple machines make work easier by changing the amount of force you need or the direction in which it is applied.
40 joules
You push a 20-kg box across the floor for ten meters.
An object traveling at a constant speed.
Newton's First Law: An object in motion will maintain its velocity unless acted on by an outside force.
10 N
Cars traveling at faster speeds have more momentum.
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