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Laabri

Forces

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Last updated about 5 years ago
17 Nsɛmmisa
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The resolution of an instrument is the smallest change in the quantity being measured.

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Someone pushes the box from the side with a force of 10N. The box does not move

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Asemmisa {{asɛmmisaAhyɛnsode}}
1.

Sort the forces into two lists:contact and non-contact forces.

Forces are pushes or pulls between two objects.

The diagram below shows the piece of equipment used to measure forces.

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2.

The device used to measure forces is called

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3.

The resolution of the instrument in the diagram is

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4.

The diagram shows the forces acting on a parachutist after they have opened their parachute.

Label the force arrows with the name of each force.

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5.

The diagram shows a box on the ground.

What is the weight of the box?

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6.

What is the name of the force that prevents the box from moving?

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7.

What is the size of the force that prevents the box from moving?

Martin takes a bungee jump from a bridge over a river.

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8.

What is the name of the force that makes him fall?

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9.

What is the name of the force that stops him from hitting the water?

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10.

The Moon is affected by Earth's gravity.

Draw an arrow to show the direction of the force of Earth’s gravity on the Moon.

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11.

The diagram shows a box resting on a table.

Which arrow shows the direction of the force of the table on the book?

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12.

The diagram shows a plane that is flying at a constant speed and height.

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13.

The plane speeds up. How do the forces change?

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14.

The diagram shows a tug of war.

The people pull with the forces shown.

Explain what happens to the rope.

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15.

Explain your answer to Q14

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16.

An extra person joins the team on the right and pulls with a force of 10N.

What happens to the rope?

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17.

Explain your answer to Q16.