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Which statement best describes the advantage of using simple machines?
The large truck, because objects with greater mass have greater inertia.
When a ballon pushes air backwards, the air pushes the balloon forward and causes it to move.
Cars traveling at faster speeds have more momentum.
10 N
Newton's First Law: An object in motion will maintain its velocity unless acted on by an outside force.
Wedge and lever
You push a 20-kg box across the floor for ten meters.
Simple machines make work easier by changing the amount of force you need or the direction in which it is applied.
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.
When a ballon pushes air backwards, the air pushes the balloon forward and causes it to move.
Cars traveling at faster speeds have more momentum.
10 N
Newton's First Law: An object in motion will maintain its velocity unless acted on by an outside force.
Wedge and lever
You push a 20-kg box across the floor for ten meters.
Simple machines make work easier by changing the amount of force you need or the direction in which it is applied.
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.
When a ballon pushes air backwards, the air pushes the balloon forward and causes it to move.
Cars traveling at faster speeds have more momentum.
10 N
Newton's First Law: An object in motion will maintain its velocity unless acted on by an outside force.
Wedge and lever
You push a 20-kg box across the floor for ten meters.
Simple machines make work easier by changing the amount of force you need or the direction in which it is applied.
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.
When a ballon pushes air backwards, the air pushes the balloon forward and causes it to move.
Cars traveling at faster speeds have more momentum.
10 N
Newton's First Law: An object in motion will maintain its velocity unless acted on by an outside force.
Wedge and lever
You push a 20-kg box across the floor for ten meters.
Simple machines make work easier by changing the amount of force you need or the direction in which it is applied.
What two types of simple machines can be found in a pair of scissors?
The large truck, because objects with greater mass have greater inertia.
When a ballon pushes air backwards, the air pushes the balloon forward and causes it to move.
Cars traveling at faster speeds have more momentum.
10 N
Newton's First Law: An object in motion will maintain its velocity unless acted on by an outside force.
Wedge and lever
You push a 20-kg box across the floor for ten meters.
Simple machines make work easier by changing the amount of force you need or the direction in which it is applied.
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.
When a ballon pushes air backwards, the air pushes the balloon forward and causes it to move.
Cars traveling at faster speeds have more momentum.
10 N
Newton's First Law: An object in motion will maintain its velocity unless acted on by an outside force.
Wedge and lever
You push a 20-kg box across the floor for ten meters.
Simple machines make work easier by changing the amount of force you need or the direction in which it is applied.
Newton's third law states that for every action, there is an equal and opposite reaction. What is one example of this law?
The large truck, because objects with greater mass have greater inertia.
When a ballon pushes air backwards, the air pushes the balloon forward and causes it to move.
Cars traveling at faster speeds have more momentum.
10 N
Newton's First Law: An object in motion will maintain its velocity unless acted on by an outside force.
Wedge and lever
You push a 20-kg box across the floor for ten meters.
Simple machines make work easier by changing the amount of force you need or the direction in which it is applied.
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.
When a ballon pushes air backwards, the air pushes the balloon forward and causes it to move.
Cars traveling at faster speeds have more momentum.
10 N
Newton's First Law: An object in motion will maintain its velocity unless acted on by an outside force.
Wedge and lever
You push a 20-kg box across the floor for ten meters.
Simple machines make work easier by changing the amount of force you need or the direction in which it is applied.
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