The figure below shows two teachers and three students pulling in opposite directions on the rope during a game of tug of war. Each student pulls with a force of 250 N and each teacher pulls with a force of 400 N. What is the resultant force on the rope and who will win the game?

• 50 N Teachers

• 50 N Students

• 150 N Students

• 150 N Teachers

Ali is studying how a solar panel transforms light energy into __________ energy.

• chemical

• electrical

• thermal

• sound

Vali is trying to understand why he can jump higher on the Moon than on the Earth. The reason is because ___________.

• his mass is lower on the Moon than on the Earth.

• his mass is higher on Moon than on the Earth.

• his weight is higher on the Moon than on the Earth.

• his weight is lower on the Moon than on the Earth.

Abdullo has a mass of 60 kg resting on the surface of a planet. On this planet, g=20 N/kg. What is the weight of Abdullo?

• 3.3 N

• 60 N

• 1200 N

• 260 N

The table below gives information about how much energy needed for each minute of activities. According to the table, how many minutes would you need to cycle to use up 600 kJ of energy?

• 10 minutes

• 24 minutes

• 60 minutes

• 1200 minutes

You can reduce the friction between two surfaces by ______________.

• streamlining

• lubrication

• parachute

• air resistance

Here are some pictures of a girl jumping on a trampoline. Choose the picture at which the girl has the most GPE.

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Which is the useful form of energy for a radio?

• thermal

• kinetic

• light

• sound

The condition of the road surface changes the force of friction. Which of the following is correct?

• Rougher road surface reduces friction.

• Water on the road surface increases friction.

• Oil on the road surface decreases friction.

• Ice on the road surface does not change friction.

Which combination of forces produce a resultant force acting towards the right?

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